139739062 has 4 divisors (see below), whose sum is σ = 209608596. Its totient is φ = 69869530.

The previous prime is 139739057. The next prime is 139739069. The reversal of 139739062 is 260937931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 260937931 = 61 ⋅4277671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139739069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34934764 + ... + 34934767.

It is an arithmetic number, because the mean of its divisors is an integer number (52402149).

Almost surely, 2^139739062 is an apocalyptic number.

139739062 is a deficient number, since it is larger than the sum of its proper divisors (69869534).

139739062 is an equidigital number, since it uses as much as digits as its factorization.

139739062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69869533.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 139739062 is about 11821.1277803770. The cubic root of 139739062 is about 518.9266097841.

The spelling of 139739062 in words is "one hundred thirty-nine million, seven hundred thirty-nine thousand, sixty-two".