139690862 has 16 divisors (see below), whose sum is σ = 215039232. Its totient is φ = 68025720.

The previous prime is 139690847. The next prime is 139690871. The reversal of 139690862 is 268096931.

139690862 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16313 + ... + 23355.

It is an arithmetic number, because the mean of its divisors is an integer number (13439952).

Almost surely, 2^139690862 is an apocalyptic number.

139690862 is a deficient number, since it is larger than the sum of its proper divisors (75348370).

139690862 is a wasteful number, since it uses less digits than its factorization.

139690862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7303.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 139690862 is about 11819.0888819739. The cubic root of 139690862 is about 518.8669387120.

The spelling of 139690862 in words is "one hundred thirty-nine million, six hundred ninety thousand, eight hundred sixty-two".