1156155167 has 4 divisors (see below), whose sum is σ = 1157465400. Its totient is φ = 1154844936.

The previous prime is 1156155127. The next prime is 1156155173. The reversal of 1156155167 is 7615516511.

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

It is a cyclic number.

It is not a de Polignac number, because 1156155167 - 2⁶ = 1156155103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1156155167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156155107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653792 + ... + 655557.

It is an arithmetic number, because the mean of its divisors is an integer number (289366350).

Almost surely, 2^1156155167 is an apocalyptic number.

1156155167 is a deficient number, since it is larger than the sum of its proper divisors (1310233).

1156155167 is an equidigital number, since it uses as much as digits as its factorization.

1156155167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310232.

The product of its digits is 31500, while the sum is 38.

The square root of 1156155167 is about 34002.2817910798. The cubic root of 1156155167 is about 1049.5554178322. Note that the first 3 decimals are identical.

The spelling of 1156155167 in words is "one billion, one hundred fifty-six million, one hundred fifty-five thousand, one hundred sixty-seven".