1163156457 has 8 divisors (see below), whose sum is σ = 1592790976. Its totient is φ = 754479792.

The previous prime is 1163156453. The next prime is 1163156461. The reversal of 1163156457 is 7546513611.

It is an interprime number because it is at equal distance from previous prime (1163156453) and next prime (1163156461).

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

It is not a de Polignac number, because 1163156457 - 2² = 1163156453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163156453) 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, 5239333 + ... + 5239554.

It is an arithmetic number, because the mean of its divisors is an integer number (199098872).

Almost surely, 2^1163156457 is an apocalyptic number.

It is an amenable number.

1163156457 is a deficient number, since it is larger than the sum of its proper divisors (429634519).

1163156457 is a wasteful number, since it uses less digits than its factorization.

1163156457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10478927.

The product of its digits is 75600, while the sum is 39.

The square root of 1163156457 is about 34105.0796363240. The cubic root of 1163156457 is about 1051.6697415054.

The spelling of 1163156457 in words is "one billion, one hundred sixty-three million, one hundred fifty-six thousand, four hundred fifty-seven".