100472144 has 20 divisors (see below), whose sum is σ = 196487424. Its totient is φ = 49765728.

The previous prime is 100472143. The next prime is 100472149. The reversal of 100472144 is 441274001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100472143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27632 + ... + 31055.

Almost surely, 2^100472144 is an apocalyptic number.

It is an amenable number.

100472144 is a deficient number, since it is larger than the sum of its proper divisors (96015280).

100472144 is a wasteful number, since it uses less digits than its factorization.

100472144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58802 (or 58796 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 100472144 is about 10023.5794005934. The cubic root of 100472144 is about 464.8882361371. Note that the first 3 decimals are identical.

The spelling of 100472144 in words is "one hundred million, four hundred seventy-two thousand, one hundred forty-four".