139889702 has 16 divisors (see below), whose sum is σ = 225497520. Its totient is φ = 64846848.

The previous prime is 139889689. The next prime is 139889713. The reversal of 139889702 is 207988931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28427 + ... + 32982.

It is an arithmetic number, because the mean of its divisors is an integer number (14093595).

Almost surely, 2^139889702 is an apocalyptic number.

139889702 is a deficient number, since it is larger than the sum of its proper divisors (85607818).

139889702 is a wasteful number, since it uses less digits than its factorization.

139889702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61495.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 139889702 is about 11827.4977066157. The cubic root of 139889702 is about 519.1130120458.

The spelling of 139889702 in words is "one hundred thirty-nine million, eight hundred eighty-nine thousand, seven hundred two".