45210105 has 12 divisors (see below), whose sum is σ = 78364260. Its totient is φ = 24112032.

The previous prime is 45210103. The next prime is 45210119. The reversal of 45210105 is 50101254.

It can be written as a sum of positive squares in 2 ways, for example, as 6906384 + 38303721 = 2628^2 + 6189^2 .

It is not a de Polignac number, because 45210105 - 2¹ = 45210103 is a prime.

It is a super-2 number, since 2×45210105² = 4087907188222050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (45210103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 502290 + ... + 502379.

It is an arithmetic number, because the mean of its divisors is an integer number (6530355).

Almost surely, 2^45210105 is an apocalyptic number.

45210105 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45210105 is a deficient number, since it is larger than the sum of its proper divisors (33154155).

45210105 is a wasteful number, since it uses less digits than its factorization.

45210105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004680 (or 1004677 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 45210105 is about 6723.8459976415. The cubic root of 45210105 is about 356.2420422969.

Adding to 45210105 its reverse (50101254), we get a palindrome (95311359).

The spelling of 45210105 in words is "forty-five million, two hundred ten thousand, one hundred five".