100195137 has 20 divisors (see below), whose sum is σ = 171057216. Its totient is φ = 57254040.

The previous prime is 100195133. The next prime is 100195169. The reversal of 100195137 is 731591001.

It is a happy number.

It is not a de Polignac number, because 100195137 - 2² = 100195133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 100195137.

It is not an unprimeable number, because it can be changed into a prime (100195133) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 87789 + ... + 88922.

Almost surely, 2^100195137 is an apocalyptic number.

It is an amenable number.

100195137 is a deficient number, since it is larger than the sum of its proper divisors (70862079).

100195137 is an equidigital number, since it uses as much as digits as its factorization.

100195137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176730 (or 176721 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 27.

The square root of 100195137 is about 10009.7520948323. The cubic root of 100195137 is about 464.4606024312.

The spelling of 100195137 in words is "one hundred million, one hundred ninety-five thousand, one hundred thirty-seven".