1156158055 has 16 divisors (see below), whose sum is σ = 1534496544. Its totient is φ = 830701440.

The previous prime is 1156158023. The next prime is 1156158077. The reversal of 1156158055 is 5508516511.

It is a happy number.

It is not a de Polignac number, because 1156158055 - 2⁵ = 1156158023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 15 ways as a sum of consecutive naturals, for example, 237961 + ... + 242770.

It is an arithmetic number, because the mean of its divisors is an integer number (95906034).

Almost surely, 2^1156158055 is an apocalyptic number.

1156158055 is a deficient number, since it is larger than the sum of its proper divisors (378338489).

1156158055 is a wasteful number, since it uses less digits than its factorization.

1156158055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480786.

The product of its (nonzero) digits is 30000, while the sum is 37.

The square root of 1156158055 is about 34002.3242587915. The cubic root of 1156158055 is about 1049.5562917384.

The spelling of 1156158055 in words is "one billion, one hundred fifty-six million, one hundred fifty-eight thousand, fifty-five".