105631644 has 12 divisors (see below), whose sum is σ = 246473864. Its totient is φ = 35210544.

The previous prime is 105631637. The next prime is 105631651. The reversal of 105631644 is 446136501.

It is an interprime number because it is at equal distance from previous prime (105631637) and next prime (105631651).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×105631644² = 22316088428285472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4401307 + ... + 4401330.

Almost surely, 2^105631644 is an apocalyptic number.

It is an amenable number.

105631644 is an abundant number, since it is smaller than the sum of its proper divisors (140842220).

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

105631644 is a wasteful number, since it uses less digits than its factorization.

105631644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8802644 (or 8802642 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 105631644 is about 10277.7256238917. The cubic root of 105631644 is about 472.7135083898.

The spelling of 105631644 in words is "one hundred five million, six hundred thirty-one thousand, six hundred forty-four".