15001210105 has 12 divisors (see below), whose sum is σ = 20940465060. Its totient is φ = 10286543904.

The previous prime is 15001210099. The next prime is 15001210123. The reversal of 15001210105 is 50101210051.

It can be written as a sum of positive squares in 2 ways, for example, as 3368293369 + 11632916736 = 58037^2 + 107856^2 .

It is not a de Polignac number, because 15001210105 - 2⁵ = 15001210073 is a prime.

It is a super-2 number, since 2×15001210105² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30614470 + ... + 30614959.

It is an arithmetic number, because the mean of its divisors is an integer number (1745038755).

Almost surely, 2^15001210105 is an apocalyptic number.

It is an amenable number.

15001210105 is a deficient number, since it is larger than the sum of its proper divisors (5939254955).

15001210105 is an equidigital number, since it uses as much as digits as its factorization.

15001210105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61229448 (or 61229441 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 16.

Adding to 15001210105 its reverse (50101210051), we get a palindrome (65102420156).

The spelling of 15001210105 in words is "fifteen billion, one million, two hundred ten thousand, one hundred five".