139350142 has 16 divisors (see below), whose sum is σ = 222168960. Its totient is φ = 65365272.

The previous prime is 139350137. The next prime is 139350149. The reversal of 139350142 is 241053931.

It is a self number, because there is not a number n which added to its sum of digits gives 139350142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139350149) 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 7 ways as a sum of consecutive naturals, for example, 13888 + ... + 21715.

It is an arithmetic number, because the mean of its divisors is an integer number (13885560).

Almost surely, 2^139350142 is an apocalyptic number.

139350142 is a deficient number, since it is larger than the sum of its proper divisors (82818818).

139350142 is a wasteful number, since it uses less digits than its factorization.

139350142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35727.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 139350142 is about 11804.6661113307. Note that the first 3 decimals coincide. The cubic root of 139350142 is about 518.4447391237. Note that the first 3 decimals are identical.

The spelling of 139350142 in words is "one hundred thirty-nine million, three hundred fifty thousand, one hundred forty-two".