102500231 has 4 divisors (see below), whose sum is σ = 107895000. Its totient is φ = 97105464.

The previous prime is 102500227. The next prime is 102500243. The reversal of 102500231 is 132005201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132005201 = 1289 ⋅102409.

It is a cyclic number.

It is not a de Polignac number, because 102500231 - 2² = 102500227 is a prime.

It is a super-2 number, since 2×102500231² = 21012594710106722, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102506231) 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, 2697356 + ... + 2697393.

It is an arithmetic number, because the mean of its divisors is an integer number (26973750).

Almost surely, 2^102500231 is an apocalyptic number.

102500231 is a deficient number, since it is larger than the sum of its proper divisors (5394769).

102500231 is an equidigital number, since it uses as much as digits as its factorization.

102500231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5394768.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 102500231 is about 10124.2397739287. The cubic root of 102500231 is about 467.9954327238.

Adding to 102500231 its reverse (132005201), we get a palindrome (234505432).

The spelling of 102500231 in words is "one hundred two million, five hundred thousand, two hundred thirty-one".