102136937 has 4 divisors (see below), whose sum is σ = 116727936. Its totient is φ = 87545940.

The previous prime is 102136933. The next prime is 102136939. The reversal of 102136937 is 739631201.

It is a happy number.

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: 739631201 = 31 ⋅23859071.

It is a cyclic number.

It is not a de Polignac number, because 102136937 - 2² = 102136933 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102136933) 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, 7295489 + ... + 7295502.

It is an arithmetic number, because the mean of its divisors is an integer number (29181984).

Almost surely, 2^102136937 is an apocalyptic number.

It is an amenable number.

102136937 is a deficient number, since it is larger than the sum of its proper divisors (14590999).

102136937 is an equidigital number, since it uses as much as digits as its factorization.

102136937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14590998.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 102136937 is about 10106.2820562262. The cubic root of 102136937 is about 467.4418691006.

The spelling of 102136937 in words is "one hundred two million, one hundred thirty-six thousand, nine hundred thirty-seven".