159252557 has 2 divisors, whose sum is σ = 159252558. Its totient is φ = 159252556.

The previous prime is 159252469. The next prime is 159252571. The reversal of 159252557 is 755252951.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155276521 + 3976036 = 12461^2 + 1994^2 .

It is an emirp because it is prime and its reverse (755252951) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159252557 is a prime.

It is a super-2 number, since 2×159252557² = 50722753822076498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159252157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79626278 + 79626279.

It is an arithmetic number, because the mean of its divisors is an integer number (79626279).

Almost surely, 2^159252557 is an apocalyptic number.

It is an amenable number.

159252557 is a deficient number, since it is larger than the sum of its proper divisors (1).

159252557 is an equidigital number, since it uses as much as digits as its factorization.

159252557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157500, while the sum is 41.

The square root of 159252557 is about 12619.5307757460. The cubic root of 159252557 is about 542.0368399953.

The spelling of 159252557 in words is "one hundred fifty-nine million, two hundred fifty-two thousand, five hundred fifty-seven".