100427124 has 24 divisors (see below), whose sum is σ = 267805888. Its totient is φ = 28693440.

The previous prime is 100427123. The next prime is 100427147. The reversal of 100427124 is 421724001.

It is a happy number.

It is a super-2 number, since 2×100427124² = 20171214469822752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 100427124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100427123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597697 + ... + 597864.

Almost surely, 2^100427124 is an apocalyptic number.

100427124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

100427124 is an abundant number, since it is smaller than the sum of its proper divisors (167378764).

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

100427124 is a wasteful number, since it uses less digits than its factorization.

100427124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195575 (or 1195573 counting only the distinct ones).

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

The square root of 100427124 is about 10021.3334442079. Note that the first 3 decimals coincide. The cubic root of 100427124 is about 464.8187893752.

The spelling of 100427124 in words is "one hundred million, four hundred twenty-seven thousand, one hundred twenty-four".