1480520981 has 2 divisors, whose sum is σ = 1480520982. Its totient is φ = 1480520980.

The previous prime is 1480520969. The next prime is 1480521019. The reversal of 1480520981 is 1890250841.

It is an a-pointer prime, because the next prime (1480521019) can be obtained adding 1480520981 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1464592900 + 15928081 = 38270^2 + 3991^2 .

It is a cyclic number.

It is not a de Polignac number, because 1480520981 - 2¹⁸ = 1480258837 is a prime.

It is a super-2 number, since 2×1480520981² = 4383884750362404722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1480520381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740260490 + 740260491.

It is an arithmetic number, because the mean of its divisors is an integer number (740260491).

Almost surely, 2^1480520981 is an apocalyptic number.

It is an amenable number.

1480520981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1480520981 is an equidigital number, since it uses as much as digits as its factorization.

1480520981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 1480520981 is about 38477.5386556885. The cubic root of 1480520981 is about 1139.7375462814.

The spelling of 1480520981 in words is "one billion, four hundred eighty million, five hundred twenty thousand, nine hundred eighty-one".