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130130531 is a prime number
BaseRepresentation
bin1111100000110…
…10001001100011
3100001212022112022
413300122021203
5231303134111
620525052055
73140043206
oct760321143
9301768468
10130130531
1167500aa3
12376b702b
1320c6301b
14133d593d
15b6572db
hex7c1a263

130130531 has 2 divisors, whose sum is σ = 130130532. Its totient is φ = 130130530.

The previous prime is 130130503. The next prime is 130130543. The reversal of 130130531 is 135031031.

It is a strong prime.

It is an emirp because it is prime and its reverse (135031031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130130531 - 222 = 125936227 is a prime.

It is a super-2 number, since 2×1301305312 = 33867910196683922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130130501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65065265 + 65065266.

It is an arithmetic number, because the mean of its divisors is an integer number (65065266).

Almost surely, 2130130531 is an apocalyptic number.

130130531 is a deficient number, since it is larger than the sum of its proper divisors (1).

130130531 is an equidigital number, since it uses as much as digits as its factorization.

130130531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 130130531 is about 11407.4769778422. The cubic root of 130130531 is about 506.7491948227.

Adding to 130130531 its reverse (135031031), we get a palindrome (265161562).

The spelling of 130130531 in words is "one hundred thirty million, one hundred thirty thousand, five hundred thirty-one".