139040120 has 32 divisors (see below), whose sum is σ = 313189200. Its totient is φ = 55554048.

The previous prime is 139040101. The next prime is 139040131. The reversal of 139040120 is 21040931.

It is a super-2 number, since 2×139040120² = 38664309939228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 139040092 and 139040101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55127 + ... + 57593.

Almost surely, 2^139040120 is an apocalyptic number.

139040120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139040120 is an abundant number, since it is smaller than the sum of its proper divisors (174149080).

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

139040120 is a wasteful number, since it uses less digits than its factorization.

139040120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3887 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 139040120 is about 11791.5274667873. The cubic root of 139040120 is about 518.0599802342.

The spelling of 139040120 in words is "one hundred thirty-nine million, forty thousand, one hundred twenty".