100603972 has 24 divisors (see below), whose sum is σ = 203759360. Its totient is φ = 42569280.

The previous prime is 100603969. The next prime is 100603981. The reversal of 100603972 is 279306001.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 100603972.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20529 + ... + 24952.

Almost surely, 2^100603972 is an apocalyptic number.

It is an amenable number.

100603972 is an abundant number, since it is smaller than the sum of its proper divisors (103155388).

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

100603972 is a wasteful number, since it uses less digits than its factorization.

100603972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45571 (or 45569 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 100603972 is about 10030.1531394092. The cubic root of 100603972 is about 465.0914715801.

Adding to 100603972 its reverse (279306001), we get a palindrome (379909973).

The spelling of 100603972 in words is "one hundred million, six hundred three thousand, nine hundred seventy-two".