100055138 has 8 divisors (see below), whose sum is σ = 150738780. Its totient is φ = 49808880.

The previous prime is 100055101. The next prime is 100055147. The reversal of 100055138 is 831550001.

It can be written as a sum of positive squares in 2 ways, for example, as 98346889 + 1708249 = 9917^2 + 1307^2 .

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

It is a super-2 number, since 2×100055138² = 20022061280398088, which contains 22 as substring.

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, 108773 + ... + 109688.

Almost surely, 2^100055138 is an apocalyptic number.

100055138 is a deficient number, since it is larger than the sum of its proper divisors (50683642).

100055138 is a wasteful number, since it uses less digits than its factorization.

100055138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218692.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 100055138 is about 10002.7565200799. The cubic root of 100055138 is about 464.2441769952.

The spelling of 100055138 in words is "one hundred million, fifty-five thousand, one hundred thirty-eight".