102535131 has 4 divisors (see below), whose sum is σ = 136713512. Its totient is φ = 68356752.

The previous prime is 102535117. The next prime is 102535133. The reversal of 102535131 is 131535201.

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

It is not a de Polignac number, because 102535131 - 2⁷ = 102535003 is a prime.

It is a super-2 number, since 2×102535131² = 21026906178374322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102535098 and 102535107.

It is not an unprimeable number, because it can be changed into a prime (102535133) 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, 17089186 + ... + 17089191.

It is an arithmetic number, because the mean of its divisors is an integer number (34178378).

Almost surely, 2^102535131 is an apocalyptic number.

102535131 is a deficient number, since it is larger than the sum of its proper divisors (34178381).

102535131 is an equidigital number, since it uses as much as digits as its factorization.

102535131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34178380.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 102535131 is about 10125.9632134430. The cubic root of 102535131 is about 468.0485421561.

The spelling of 102535131 in words is "one hundred two million, five hundred thirty-five thousand, one hundred thirty-one".