102513937 has 4 divisors (see below), whose sum is σ = 103202100. Its totient is φ = 101825776.

The previous prime is 102513907. The next prime is 102513947. The reversal of 102513937 is 739315201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36433296 + 66080641 = 6036^2 + 8129^2 .

It is a cyclic number.

It is not a de Polignac number, because 102513937 - 2⁷ = 102513809 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 102513899 and 102513908.

It is not an unprimeable number, because it can be changed into a prime (102513907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343858 + ... + 344155.

It is an arithmetic number, because the mean of its divisors is an integer number (25800525).

Almost surely, 2^102513937 is an apocalyptic number.

It is an amenable number.

102513937 is a deficient number, since it is larger than the sum of its proper divisors (688163).

102513937 is an equidigital number, since it uses as much as digits as its factorization.

102513937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688162.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 102513937 is about 10124.9166416322. The cubic root of 102513937 is about 468.0162914070.

The spelling of 102513937 in words is "one hundred two million, five hundred thirteen thousand, nine hundred thirty-seven".