102631232 has 84 divisors (see below), whose sum is σ = 232082340. Its totient is φ = 44943360.

The previous prime is 102631231. The next prime is 102631271. The reversal of 102631232 is 232136201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 72863296 + 29767936 = 8536^2 + 5456^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102631231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224348 + ... + 224804.

It is an arithmetic number, because the mean of its divisors is an integer number (2762885).

Almost surely, 2^102631232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102631232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116041170).

102631232 is an abundant number, since it is smaller than the sum of its proper divisors (129451108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102631232 is a wasteful number, since it uses less digits than its factorization.

102631232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 102631232 is about 10130.7073790531. The cubic root of 102631232 is about 468.1947225834.

Adding to 102631232 its reverse (232136201), we get a palindrome (334767433).

The spelling of 102631232 in words is "one hundred two million, six hundred thirty-one thousand, two hundred thirty-two".