183856157 has 2 divisors, whose sum is σ = 183856158. Its totient is φ = 183856156.

The previous prime is 183856081. The next prime is 183856163. The reversal of 183856157 is 751658381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168324676 + 15531481 = 12974^2 + 3941^2 .

It is a cyclic number.

It is not a de Polignac number, because 183856157 - 2¹² = 183852061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (183856657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91928078 + 91928079.

It is an arithmetic number, because the mean of its divisors is an integer number (91928079).

Almost surely, 2^183856157 is an apocalyptic number.

It is an amenable number.

183856157 is a deficient number, since it is larger than the sum of its proper divisors (1).

183856157 is an equidigital number, since it uses as much as digits as its factorization.

183856157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 44.

The square root of 183856157 is about 13559.3568062796. The cubic root of 183856157 is about 568.6251434334.

It can be divided in two parts, 18385 and 6157, that added together give a palindrome (24542).

The spelling of 183856157 in words is "one hundred eighty-three million, eight hundred fifty-six thousand, one hundred fifty-seven".