152565121 has 2 divisors, whose sum is σ = 152565122. Its totient is φ = 152565120.

The previous prime is 152565113. The next prime is 152565131. The reversal of 152565121 is 121565251.

152565121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91412721 + 61152400 = 9561^2 + 7820^2 .

It is an emirp because it is prime and its reverse (121565251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 152565121 - 2³ = 152565113 is a prime.

It is a super-2 number, since 2×152565121² = 46552232291489282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 152565121.

It is not a weakly prime, because it can be changed into another prime (152565131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76282560 + 76282561.

It is an arithmetic number, because the mean of its divisors is an integer number (76282561).

Almost surely, 2^152565121 is an apocalyptic number.

It is an amenable number.

152565121 is a deficient number, since it is larger than the sum of its proper divisors (1).

152565121 is an equidigital number, since it uses as much as digits as its factorization.

152565121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 28.

The square root of 152565121 is about 12351.7254260285. The cubic root of 152565121 is about 534.3409020387.

The spelling of 152565121 in words is "one hundred fifty-two million, five hundred sixty-five thousand, one hundred twenty-one".