139430132 has 12 divisors (see below), whose sum is σ = 256845120. Its totient is φ = 66045816.

The previous prime is 139430131. The next prime is 139430143. The reversal of 139430132 is 231034931.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139430131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917228 + ... + 917379.

It is an arithmetic number, because the mean of its divisors is an integer number (21403760).

Almost surely, 2^139430132 is an apocalyptic number.

It is an amenable number.

139430132 is a deficient number, since it is larger than the sum of its proper divisors (117414988).

139430132 is a wasteful number, since it uses less digits than its factorization.

139430132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834630 (or 1834628 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 139430132 is about 11808.0536922899. The cubic root of 139430132 is about 518.5439196523.

The spelling of 139430132 in words is "one hundred thirty-nine million, four hundred thirty thousand, one hundred thirty-two".