100401516 has 36 divisors (see below), whose sum is σ = 256266192. Its totient is φ = 33141024.

The previous prime is 100401503. The next prime is 100401527. The reversal of 100401516 is 615104001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9831 + ... + 17246.

Almost surely, 2^100401516 is an apocalyptic number.

It is an amenable number.

100401516 is an abundant number, since it is smaller than the sum of its proper divisors (155864676).

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

100401516 is a wasteful number, since it uses less digits than its factorization.

100401516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27190 (or 27185 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 100401516 is about 10020.0556884680. The cubic root of 100401516 is about 464.7792778337.

Adding to 100401516 its reverse (615104001), we get a palindrome (715505517).

The spelling of 100401516 in words is "one hundred million, four hundred one thousand, five hundred sixteen".