100142456 has 16 divisors (see below), whose sum is σ = 188246040. Its totient is φ = 49943520.

The previous prime is 100142443. The next prime is 100142467. The reversal of 100142456 is 654241001.

It is a super-2 number, since 2×100142456² = 20057022987423872, 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, 12590 + ... + 18941.

Almost surely, 2^100142456 is an apocalyptic number.

It is an amenable number.

100142456 is a deficient number, since it is larger than the sum of its proper divisors (88103584).

100142456 is a wasteful number, since it uses less digits than its factorization.

100142456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31934 (or 31930 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 100142456 is about 10007.1202650913. The cubic root of 100142456 is about 464.3791861758.

Adding to 100142456 its reverse (654241001), we get a palindrome (754383457).

The spelling of 100142456 in words is "one hundred million, one hundred forty-two thousand, four hundred fifty-six".