152642449 has 2 divisors, whose sum is σ = 152642450. Its totient is φ = 152642448.

The previous prime is 152642431. The next prime is 152642453. The reversal of 152642449 is 944246251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87759424 + 64883025 = 9368^2 + 8055^2 .

It is a cyclic number.

It is not a de Polignac number, because 152642449 - 2²⁵ = 119088017 is a prime.

It is not a weakly prime, because it can be changed into another prime (152642849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76321224 + 76321225.

It is an arithmetic number, because the mean of its divisors is an integer number (76321225).

Almost surely, 2^152642449 is an apocalyptic number.

It is an amenable number.

152642449 is a deficient number, since it is larger than the sum of its proper divisors (1).

152642449 is an equidigital number, since it uses as much as digits as its factorization.

152642449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 37.

The square root of 152642449 is about 12354.8552804151. The cubic root of 152642449 is about 534.4311641161.

The spelling of 152642449 in words is "one hundred fifty-two million, six hundred forty-two thousand, four hundred forty-nine".