100195631 has 8 divisors (see below), whose sum is σ = 101329584. Its totient is φ = 99066240.

The previous prime is 100195583. The next prime is 100195643. The reversal of 100195631 is 136591001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100195631 - 2¹⁸ = 99933487 is a prime.

It is a super-2 number, since 2×100195631² = 20078328942976322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100195631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100195651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61001 + ... + 62621.

It is an arithmetic number, because the mean of its divisors is an integer number (12666198).

Almost surely, 2^100195631 is an apocalyptic number.

100195631 is a deficient number, since it is larger than the sum of its proper divisors (1133953).

100195631 is a wasteful number, since it uses less digits than its factorization.

100195631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 100195631 is about 10009.7767707377. The cubic root of 100195631 is about 464.4613657522.

The spelling of 100195631 in words is "one hundred million, one hundred ninety-five thousand, six hundred thirty-one".