1157039839 has 8 divisors (see below), whose sum is σ = 1258212528. Its totient is φ = 1059546240.

The previous prime is 1157039813. The next prime is 1157039857. The reversal of 1157039839 is 9389307511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1157039839 - 2⁹ = 1157039327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157039239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919117 + ... + 920374.

It is an arithmetic number, because the mean of its divisors is an integer number (157276566).

Almost surely, 2^1157039839 is an apocalyptic number.

1157039839 is a deficient number, since it is larger than the sum of its proper divisors (101172689).

1157039839 is a wasteful number, since it uses less digits than its factorization.

1157039839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839545.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 1157039839 is about 34015.2883127573. The cubic root of 1157039839 is about 1049.8230507561.

The spelling of 1157039839 in words is "one billion, one hundred fifty-seven million, thirty-nine thousand, eight hundred thirty-nine".