139148142 has 24 divisors (see below), whose sum is σ = 323733096. Its totient is φ = 39756528.

The previous prime is 139148117. The next prime is 139148167. The reversal of 139148142 is 241841931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (139148117) and next prime (139148167).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236353 + ... + 236940.

It is an arithmetic number, because the mean of its divisors is an integer number (13488879).

Almost surely, 2^139148142 is an apocalyptic number.

139148142 is an abundant number, since it is smaller than the sum of its proper divisors (184584954).

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

139148142 is a wasteful number, since it uses less digits than its factorization.

139148142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473312 (or 473305 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 139148142 is about 11796.1070697074. The cubic root of 139148142 is about 518.1941079208.

The spelling of 139148142 in words is "one hundred thirty-nine million, one hundred forty-eight thousand, one hundred forty-two".