152147561 has 2 divisors, whose sum is σ = 152147562. Its totient is φ = 152147560.

The previous prime is 152147539. The next prime is 152147579. The reversal of 152147561 is 165741251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121000000 + 31147561 = 11000^2 + 5581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152147561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (152147531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76073780 + 76073781.

It is an arithmetic number, because the mean of its divisors is an integer number (76073781).

Almost surely, 2^152147561 is an apocalyptic number.

It is an amenable number.

152147561 is a deficient number, since it is larger than the sum of its proper divisors (1).

152147561 is an equidigital number, since it uses as much as digits as its factorization.

152147561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 32.

The square root of 152147561 is about 12334.8109430181. The cubic root of 152147561 is about 533.8529721421.

The spelling of 152147561 in words is "one hundred fifty-two million, one hundred forty-seven thousand, five hundred sixty-one".