139203142 has 16 divisors (see below), whose sum is σ = 225126720. Its totient is φ = 64173312.

The previous prime is 139203131. The next prime is 139203151. The reversal of 139203142 is 241302931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24438 + ... + 29590.

It is an arithmetic number, because the mean of its divisors is an integer number (14070420).

Almost surely, 2^139203142 is an apocalyptic number.

139203142 is a deficient number, since it is larger than the sum of its proper divisors (85923578).

139203142 is a wasteful number, since it uses less digits than its factorization.

139203142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6207.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 139203142 is about 11798.4381169712. The cubic root of 139203142 is about 518.2623731075.

The spelling of 139203142 in words is "one hundred thirty-nine million, two hundred three thousand, one hundred forty-two".