139125733 has 4 divisors (see below), whose sum is σ = 146448160. Its totient is φ = 131803308.

The previous prime is 139125719. The next prime is 139125757. The reversal of 139125733 is 337521931.

It is a happy number.

139125733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 139125733 - 2⁹ = 139125221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139125533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3661185 + ... + 3661222.

It is an arithmetic number, because the mean of its divisors is an integer number (36612040).

Almost surely, 2^139125733 is an apocalyptic number.

It is an amenable number.

139125733 is a deficient number, since it is larger than the sum of its proper divisors (7322427).

139125733 is an equidigital number, since it uses as much as digits as its factorization.

139125733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7322426.

The product of its digits is 17010, while the sum is 34.

The square root of 139125733 is about 11795.1571842006. The cubic root of 139125733 is about 518.1662890437.

The spelling of 139125733 in words is "one hundred thirty-nine million, one hundred twenty-five thousand, seven hundred thirty-three".