152556161 has 4 divisors (see below), whose sum is σ = 152748372. Its totient is φ = 152363952.

The previous prime is 152556137. The next prime is 152556167. The reversal of 152556161 is 161655251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54169600 + 98386561 = 7360^2 + 9919^2 .

It is a cyclic number.

It is not a de Polignac number, because 152556161 - 2⁶ = 152556097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152556167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94910 + ... + 96503.

It is an arithmetic number, because the mean of its divisors is an integer number (38187093).

Almost surely, 2^152556161 is an apocalyptic number.

It is an amenable number.

152556161 is a deficient number, since it is larger than the sum of its proper divisors (192211).

152556161 is an equidigital number, since it uses as much as digits as its factorization.

152556161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192210.

The product of its digits is 9000, while the sum is 32.

The square root of 152556161 is about 12351.3627183400. The cubic root of 152556161 is about 534.3304413948.

The spelling of 152556161 in words is "one hundred fifty-two million, five hundred fifty-six thousand, one hundred sixty-one".