102713557 has 4 divisors (see below), whose sum is σ = 103710880. Its totient is φ = 101716236.

The previous prime is 102713531. The next prime is 102713573. The reversal of 102713557 is 755317201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 755317201 = 31 ⋅24365071.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102713557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102713057) 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, 498507 + ... + 498712.

It is an arithmetic number, because the mean of its divisors is an integer number (25927720).

Almost surely, 2^102713557 is an apocalyptic number.

It is an amenable number.

102713557 is a deficient number, since it is larger than the sum of its proper divisors (997323).

102713557 is an equidigital number, since it uses as much as digits as its factorization.

102713557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997322.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 102713557 is about 10134.7697063130. The cubic root of 102713557 is about 468.3198756140.

The spelling of 102713557 in words is "one hundred two million, seven hundred thirteen thousand, five hundred fifty-seven".