139083757 has 2 divisors, whose sum is σ = 139083758. Its totient is φ = 139083756.

The previous prime is 139083733. The next prime is 139083787. The reversal of 139083757 is 757380931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80622441 + 58461316 = 8979^2 + 7646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139083757 is a prime.

It is a super-2 number, since 2×139083757² = 38688582922470098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139083727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69541878 + 69541879.

It is an arithmetic number, because the mean of its divisors is an integer number (69541879).

Almost surely, 2^139083757 is an apocalyptic number.

It is an amenable number.

139083757 is a deficient number, since it is larger than the sum of its proper divisors (1).

139083757 is an equidigital number, since it uses as much as digits as its factorization.

139083757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 139083757 is about 11793.3776756280. The cubic root of 139083757 is about 518.1141713525.

The spelling of 139083757 in words is "one hundred thirty-nine million, eighty-three thousand, seven hundred fifty-seven".