100523631 has 16 divisors (see below), whose sum is σ = 145968480. Its totient is φ = 61163520.

The previous prime is 100523627. The next prime is 100523659. The reversal of 100523631 is 136325001.

It is not a de Polignac number, because 100523631 - 2² = 100523627 is a prime.

It is a super-2 number, since 2×100523631² = 20210000778848322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100523598 and 100523607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100523671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11010 + ... + 17951.

It is an arithmetic number, because the mean of its divisors is an integer number (9123030).

Almost surely, 2^100523631 is an apocalyptic number.

100523631 is a deficient number, since it is larger than the sum of its proper divisors (45444849).

100523631 is a wasteful number, since it uses less digits than its factorization.

100523631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29066.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 100523631 is about 10026.1473657632. The cubic root of 100523631 is about 464.9676333119.

Adding to 100523631 its reverse (136325001), we get a palindrome (236848632).

The spelling of 100523631 in words is "one hundred million, five hundred twenty-three thousand, six hundred thirty-one".