139430142 has 12 divisors (see below), whose sum is σ = 302098680. Its totient is φ = 46476708.

The previous prime is 139430131. The next prime is 139430143. The reversal of 139430142 is 241034931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139430143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3873042 + ... + 3873077.

It is an arithmetic number, because the mean of its divisors is an integer number (25174890).

Almost surely, 2^139430142 is an apocalyptic number.

139430142 is an abundant number, since it is smaller than the sum of its proper divisors (162668538).

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

139430142 is a wasteful number, since it uses less digits than its factorization.

139430142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7746127 (or 7746124 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 139430142 is about 11808.0541157297. The cubic root of 139430142 is about 518.5439320491.

The spelling of 139430142 in words is "one hundred thirty-nine million, four hundred thirty thousand, one hundred forty-two".