189063157 has 2 divisors, whose sum is σ = 189063158. Its totient is φ = 189063156.

The previous prime is 189063143. The next prime is 189063179. The reversal of 189063157 is 751360981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187388721 + 1674436 = 13689^2 + 1294^2 .

It is a cyclic number.

It is not a de Polignac number, because 189063157 - 2¹¹ = 189061109 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 (189063107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94531578 + 94531579.

It is an arithmetic number, because the mean of its divisors is an integer number (94531579).

Almost surely, 2^189063157 is an apocalyptic number.

It is an amenable number.

189063157 is a deficient number, since it is larger than the sum of its proper divisors (1).

189063157 is an equidigital number, since it uses as much as digits as its factorization.

189063157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 189063157 is about 13750.0238908883. The cubic root of 189063157 is about 573.9432709904.

The spelling of 189063157 in words is "one hundred eighty-nine million, sixty-three thousand, one hundred fifty-seven".