100131501 has 16 divisors (see below), whose sum is σ = 141935040. Its totient is φ = 62611200.

The previous prime is 100131487. The next prime is 100131523. The reversal of 100131501 is 105131001.

It is not a de Polignac number, because 100131501 - 2¹⁷ = 100000429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100131571) 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, 2940 + ... + 14453.

It is an arithmetic number, because the mean of its divisors is an integer number (8870940).

Almost surely, 2^100131501 is an apocalyptic number.

It is an amenable number.

100131501 is a deficient number, since it is larger than the sum of its proper divisors (41803539).

100131501 is a wasteful number, since it uses less digits than its factorization.

100131501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17516.

The product of its (nonzero) digits is 15, while the sum is 12.

The square root of 100131501 is about 10006.5728898559. The cubic root of 100131501 is about 464.3622521011.

Adding to 100131501 its reverse (105131001), we get a palindrome (205262502).

The spelling of 100131501 in words is "one hundred million, one hundred thirty-one thousand, five hundred one".