102297631 has 4 divisors (see below), whose sum is σ = 102444264. Its totient is φ = 102151000.

The previous prime is 102297607. The next prime is 102297647. The reversal of 102297631 is 136792201.

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

It is a cyclic number.

It is not a de Polignac number, because 102297631 - 2⁵ = 102297599 is a prime.

It is a super-2 number, since 2×102297631² = 20929610616424322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 102297593 and 102297602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102297661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72265 + ... + 73666.

It is an arithmetic number, because the mean of its divisors is an integer number (25611066).

Almost surely, 2^102297631 is an apocalyptic number.

102297631 is a deficient number, since it is larger than the sum of its proper divisors (146633).

102297631 is an equidigital number, since it uses as much as digits as its factorization.

102297631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146632.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 102297631 is about 10114.2291352332. The cubic root of 102297631 is about 467.6868857321.

The spelling of 102297631 in words is "one hundred two million, two hundred ninety-seven thousand, six hundred thirty-one".