139791106 has 32 divisors (see below), whose sum is σ = 265063680. Its totient is φ = 53804736.

The previous prime is 139791103. The next prime is 139791133. The reversal of 139791106 is 601197931.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (139791103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3646 + ... + 17113.

It is an arithmetic number, because the mean of its divisors is an integer number (8283240).

Almost surely, 2^139791106 is an apocalyptic number.

139791106 is a deficient number, since it is larger than the sum of its proper divisors (125272574).

139791106 is a wasteful number, since it uses less digits than its factorization.

139791106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20818.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 139791106 is about 11823.3288882615. The cubic root of 139791106 is about 518.9910242816.

The spelling of 139791106 in words is "one hundred thirty-nine million, seven hundred ninety-one thousand, one hundred six".