139335057 has 12 divisors (see below), whose sum is σ = 201386484. Its totient is φ = 92832480.

The previous prime is 139335011. The next prime is 139335061. The reversal of 139335057 is 750533931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40908816 + 98426241 = 6396^2 + 9921^2 .

It is not a de Polignac number, because 139335057 - 2¹⁹ = 138810769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139335457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14707 + ... + 22247.

It is an arithmetic number, because the mean of its divisors is an integer number (16782207).

Almost surely, 2^139335057 is an apocalyptic number.

It is an amenable number.

139335057 is a deficient number, since it is larger than the sum of its proper divisors (62051427).

139335057 is a wasteful number, since it uses less digits than its factorization.

139335057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9600 (or 9597 counting only the distinct ones).

The product of its (nonzero) digits is 42525, while the sum is 36.

The square root of 139335057 is about 11804.0271517817. The cubic root of 139335057 is about 518.4260308038.

Adding to 139335057 its reverse (750533931), we get a palindrome (889868988).

The spelling of 139335057 in words is "one hundred thirty-nine million, three hundred thirty-five thousand, fifty-seven".