139773936 has 40 divisors (see below), whose sum is σ = 367009744. Its totient is φ = 45826560.

The previous prime is 139773929. The next prime is 139773973. The reversal of 139773936 is 639377931.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 20941 + ... + 26796.

Almost surely, 2^139773936 is an apocalyptic number.

139773936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139773936 is an abundant number, since it is smaller than the sum of its proper divisors (227235808).

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

139773936 is a wasteful number, since it uses less digits than its factorization.

139773936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47809 (or 47803 counting only the distinct ones).

The product of its digits is 642978, while the sum is 48.

The square root of 139773936 is about 11822.6027591220. The cubic root of 139773936 is about 518.9697748593.

The spelling of 139773936 in words is "one hundred thirty-nine million, seven hundred seventy-three thousand, nine hundred thirty-six".