100451938 has 4 divisors (see below), whose sum is σ = 150677910. Its totient is φ = 50225968.

The previous prime is 100451909. The next prime is 100451941. The reversal of 100451938 is 839154001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50509449 + 49942489 = 7107^2 + 7067^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25112983 + ... + 25112986.

Almost surely, 2^100451938 is an apocalyptic number.

100451938 is a deficient number, since it is larger than the sum of its proper divisors (50225972).

100451938 is an equidigital number, since it uses as much as digits as its factorization.

100451938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50225971.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 100451938 is about 10022.5714265352. The cubic root of 100451938 is about 464.8570694173.

The spelling of 100451938 in words is "one hundred million, four hundred fifty-one thousand, nine hundred thirty-eight".