152261521 has 2 divisors, whose sum is σ = 152261522. Its totient is φ = 152261520.

The previous prime is 152261509. The next prime is 152261531. The reversal of 152261521 is 125162251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126900225 + 25361296 = 11265^2 + 5036^2 .

It is a cyclic number.

It is not a de Polignac number, because 152261521 - 2⁵ = 152261489 is a prime.

It is not a weakly prime, because it can be changed into another prime (152261531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76130760 + 76130761.

It is an arithmetic number, because the mean of its divisors is an integer number (76130761).

Almost surely, 2^152261521 is an apocalyptic number.

It is an amenable number.

152261521 is a deficient number, since it is larger than the sum of its proper divisors (1).

152261521 is an equidigital number, since it uses as much as digits as its factorization.

152261521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 25.

The square root of 152261521 is about 12339.4295249011. The cubic root of 152261521 is about 533.9862258975.

The spelling of 152261521 in words is "one hundred fifty-two million, two hundred sixty-one thousand, five hundred twenty-one".