1156357163 has 4 divisors (see below), whose sum is σ = 1245307728. Its totient is φ = 1067406600.

The previous prime is 1156357123. The next prime is 1156357171. The reversal of 1156357163 is 3617536511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3617536511 = 1481 ⋅2442631.

It is not a de Polignac number, because 1156357163 - 2⁶ = 1156357099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156357123) 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, 44475263 + ... + 44475288.

It is an arithmetic number, because the mean of its divisors is an integer number (311326932).

Almost surely, 2^1156357163 is an apocalyptic number.

1156357163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1156357163 is a deficient number, since it is larger than the sum of its proper divisors (88950565).

1156357163 is an equidigital number, since it uses as much as digits as its factorization.

1156357163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88950564.

The product of its digits is 56700, while the sum is 38.

The square root of 1156357163 is about 34005.2519914204. The cubic root of 1156357163 is about 1049.6165381318.

The spelling of 1156357163 in words is "one billion, one hundred fifty-six million, three hundred fifty-seven thousand, one hundred sixty-three".