1157508489 has 8 divisors (see below), whose sum is σ = 1568645632. Its totient is φ = 759021840.

The previous prime is 1157508463. The next prime is 1157508497. The reversal of 1157508489 is 9848057511.

It is a happy number.

1157508489 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1157508489 - 2¹² = 1157504393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157508409) 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, 3162409 + ... + 3162774.

It is an arithmetic number, because the mean of its divisors is an integer number (196080704).

Almost surely, 2^1157508489 is an apocalyptic number.

It is an amenable number.

1157508489 is a deficient number, since it is larger than the sum of its proper divisors (411137143).

1157508489 is an equidigital number, since it uses as much as digits as its factorization.

1157508489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6325247.

The product of its (nonzero) digits is 403200, while the sum is 48.

The square root of 1157508489 is about 34022.1764294996. The cubic root of 1157508489 is about 1049.9647725143.

The spelling of 1157508489 in words is "one billion, one hundred fifty-seven million, five hundred eight thousand, four hundred eighty-nine".