139033723 has 2 divisors, whose sum is σ = 139033724. Its totient is φ = 139033722.

The previous prime is 139033721. The next prime is 139033757. The reversal of 139033723 is 327330931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139033723 - 2¹ = 139033721 is a prime.

It is a super-2 number, since 2×139033723² = 38660752262481458, which contains 22 as substring.

Together with 139033721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (139033721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69516861 + 69516862.

It is an arithmetic number, because the mean of its divisors is an integer number (69516862).

Almost surely, 2^139033723 is an apocalyptic number.

139033723 is a deficient number, since it is larger than the sum of its proper divisors (1).

139033723 is an equidigital number, since it uses as much as digits as its factorization.

139033723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 31.

The square root of 139033723 is about 11791.2562095817. The cubic root of 139033723 is about 518.0520350921.

The spelling of 139033723 in words is "one hundred thirty-nine million, thirty-three thousand, seven hundred twenty-three".