1158960815 has 4 divisors (see below), whose sum is σ = 1390752984. Its totient is φ = 927168648.

The previous prime is 1158960797. The next prime is 1158960833. The reversal of 1158960815 is 5180698511.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1158960797) and next prime (1158960833).

It is a cyclic number.

It is not a de Polignac number, because 1158960815 - 2²⁶ = 1091851951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115896077 + ... + 115896086.

It is an arithmetic number, because the mean of its divisors is an integer number (347688246).

Almost surely, 2^1158960815 is an apocalyptic number.

1158960815 is a deficient number, since it is larger than the sum of its proper divisors (231792169).

1158960815 is an equidigital number, since it uses as much as digits as its factorization.

1158960815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231792168.

The product of its (nonzero) digits is 86400, while the sum is 44.

The square root of 1158960815 is about 34043.5135525110. The cubic root of 1158960815 is about 1050.4037192798.

The spelling of 1158960815 in words is "one billion, one hundred fifty-eight million, nine hundred sixty thousand, eight hundred fifteen".