139773933 has 18 divisors (see below), whose sum is σ = 217625226. Its totient is φ = 85936032.

The previous prime is 139773929. The next prime is 139773973. The reversal of 139773933 is 339377931.

It can be written as a sum of positive squares in 3 ways, for example, as 80514729 + 59259204 = 8973^2 + 7698^2 .

It is not a de Polignac number, because 139773933 - 2² = 139773929 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139773913) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 127335 + ... + 128427.

Almost surely, 2^139773933 is an apocalyptic number.

139773933 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

139773933 is a deficient number, since it is larger than the sum of its proper divisors (77851293).

139773933 is an equidigital number, since it uses as much as digits as its factorization.

139773933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205 (or 1109 counting only the distinct ones).

The product of its digits is 321489, while the sum is 45.

The square root of 139773933 is about 11822.6026322464. The cubic root of 139773933 is about 518.9697711464.

The spelling of 139773933 in words is "one hundred thirty-nine million, seven hundred seventy-three thousand, nine hundred thirty-three".