139076742 has 32 divisors (see below), whose sum is σ = 318240000. Its totient is φ = 39692448.

The previous prime is 139076737. The next prime is 139076759. The reversal of 139076742 is 247670931.

It is a super-3 number, since 3×139076742³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 139076742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70384 + ... + 72332.

It is an arithmetic number, because the mean of its divisors is an integer number (9945000).

Almost surely, 2^139076742 is an apocalyptic number.

139076742 is an abundant number, since it is smaller than the sum of its proper divisors (179163258).

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

139076742 is a wasteful number, since it uses less digits than its factorization.

139076742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 139076742 is about 11793.0802592029. The cubic root of 139076742 is about 518.1054604575.

The spelling of 139076742 in words is "one hundred thirty-nine million, seventy-six thousand, seven hundred forty-two".