913139757 has 16 divisors (see below), whose sum is σ = 1358199360. Its totient is φ = 606330000.

The previous prime is 913139723. The next prime is 913139771. The reversal of 913139757 is 757931319.

It is not a de Polignac number, because 913139757 - 2¹² = 913135661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913139057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60594 + ... + 74147.

It is an arithmetic number, because the mean of its divisors is an integer number (84887460).

Almost surely, 2^913139757 is an apocalyptic number.

It is an amenable number.

913139757 is a deficient number, since it is larger than the sum of its proper divisors (445059603).

913139757 is a wasteful number, since it uses less digits than its factorization.

913139757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135001 (or 134995 counting only the distinct ones).

The product of its digits is 178605, while the sum is 45.

The square root of 913139757 is about 30218.2024117915. The cubic root of 913139757 is about 970.1653301638.

The spelling of 913139757 in words is "nine hundred thirteen million, one hundred thirty-nine thousand, seven hundred fifty-seven".