139420092100 has 27 divisors (see below), whose sum is σ = 302549702637. Its totient is φ = 55766543280.

The previous prime is 139420092061. The next prime is 139420092101. The reversal of 139420092100 is 1290024931.

The square root of 139420092100 is 373390.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 50191233156 + 89228858944 = 224034^2 + 298712^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139420092101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3715231 + ... + 3752569.

Almost surely, 2^139420092100 is an apocalyptic number.

139420092100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139420092100 is the 373390-th square number.

It is an amenable number.

139420092100 is an abundant number, since it is smaller than the sum of its proper divisors (163129610537).

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

139420092100 is an frugal number, since it uses more digits than its factorization.

139420092100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74692 (or 37346 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 139420092100 in words is "one hundred thirty-nine billion, four hundred twenty million, ninety-two thousand, one hundred".