152541409 has 2 divisors, whose sum is σ = 152541410. Its totient is φ = 152541408.

The previous prime is 152541401. The next prime is 152541413. The reversal of 152541409 is 904145251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140659600 + 11881809 = 11860^2 + 3447^2 .

It is a cyclic number.

It is not a de Polignac number, because 152541409 - 2³ = 152541401 is a prime.

It is not a weakly prime, because it can be changed into another prime (152541401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76270704 + 76270705.

It is an arithmetic number, because the mean of its divisors is an integer number (76270705).

Almost surely, 2^152541409 is an apocalyptic number.

It is an amenable number.

152541409 is a deficient number, since it is larger than the sum of its proper divisors (1).

152541409 is an equidigital number, since it uses as much as digits as its factorization.

152541409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 152541409 is about 12350.7655228330. The cubic root of 152541409 is about 534.3132177994.

The spelling of 152541409 in words is "one hundred fifty-two million, five hundred forty-one thousand, four hundred nine".