100472142 has 64 divisors (see below), whose sum is σ = 224570880. Its totient is φ = 29804544.

The previous prime is 100472111. The next prime is 100472143. The reversal of 100472142 is 241274001.

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 31 ways as a sum of consecutive naturals, for example, 264909 + ... + 265287.

It is an arithmetic number, because the mean of its divisors is an integer number (3508920).

Almost surely, 2^100472142 is an apocalyptic number.

100472142 is an abundant number, since it is smaller than the sum of its proper divisors (124098738).

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

100472142 is a wasteful number, since it uses less digits than its factorization.

100472142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 100472142 is about 10023.5793008286. The cubic root of 100472142 is about 464.8882330524. Note that the first 3 decimals are identical.

The spelling of 100472142 in words is "one hundred million, four hundred seventy-two thousand, one hundred forty-two".