139322753 has 4 divisors (see below), whose sum is σ = 145380288. Its totient is φ = 133265220.

The previous prime is 139322747. The next prime is 139322767. The reversal of 139322753 is 357223931.

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, and also an emirpimes, since its reverse is a distinct semiprime: 357223931 = 4729 ⋅75539.

It is a de Polignac number, because none of the positive numbers 2^k-139322753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139327753) 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, 3028733 + ... + 3028778.

It is an arithmetic number, because the mean of its divisors is an integer number (36345072).

Almost surely, 2^139322753 is an apocalyptic number.

It is an amenable number.

139322753 is a deficient number, since it is larger than the sum of its proper divisors (6057535).

139322753 is an equidigital number, since it uses as much as digits as its factorization.

139322753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057534.

The product of its digits is 34020, while the sum is 35.

The square root of 139322753 is about 11803.5059622131. The cubic root of 139322753 is about 518.4107704623.

The spelling of 139322753 in words is "one hundred thirty-nine million, three hundred twenty-two thousand, seven hundred fifty-three".