139425142 has 12 divisors (see below), whose sum is σ = 212878260. Its totient is φ = 68467956.

The previous prime is 139425137. The next prime is 139425161. The reversal of 139425142 is 241524931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127723 + ... + 128809.

It is an arithmetic number, because the mean of its divisors is an integer number (17739855).

Almost surely, 2^139425142 is an apocalyptic number.

139425142 is a deficient number, since it is larger than the sum of its proper divisors (73453118).

139425142 is an frugal number, since it uses more digits than its factorization.

139425142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235 (or 1148 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 139425142 is about 11807.8423939346. The cubic root of 139425142 is about 518.5377336030.

The spelling of 139425142 in words is "one hundred thirty-nine million, four hundred twenty-five thousand, one hundred forty-two".