100555142 has 8 divisors (see below), whose sum is σ = 150999600. Its totient is φ = 50221944.

The previous prime is 100555097. The next prime is 100555177. The reversal of 100555142 is 241555001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×100555142² = 20222673165280328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25517 + ... + 29192.

It is an arithmetic number, because the mean of its divisors is an integer number (18874950).

Almost surely, 2^100555142 is an apocalyptic number.

100555142 is a deficient number, since it is larger than the sum of its proper divisors (50444458).

100555142 is an equidigital number, since it uses as much as digits as its factorization.

100555142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55630.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 100555142 is about 10027.7186837286. The cubic root of 100555142 is about 465.0162124844.

The spelling of 100555142 in words is "one hundred million, five hundred fifty-five thousand, one hundred forty-two".