183157081 has 8 divisors (see below), whose sum is σ = 188790624. Its totient is φ = 177586080.

The previous prime is 183157043. The next prime is 183157087. The reversal of 183157081 is 180751381.

183157081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 183157081 - 2¹⁵ = 183124313 is a prime.

It is a super-2 number, since 2×183157081² = 67093032640881122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (183157087) 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, 9655 + ... + 21436.

It is an arithmetic number, because the mean of its divisors is an integer number (23598828).

Almost surely, 2^183157081 is an apocalyptic number.

It is an amenable number.

183157081 is a deficient number, since it is larger than the sum of its proper divisors (5633543).

183157081 is a wasteful number, since it uses less digits than its factorization.

183157081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31271.

The product of its (nonzero) digits is 6720, while the sum is 34.

The square root of 183157081 is about 13533.5538939334. The cubic root of 183157081 is about 567.9035338805.

The spelling of 183157081 in words is "one hundred eighty-three million, one hundred fifty-seven thousand, eighty-one".