152644849 has 6 divisors (see below), whose sum is σ = 177566514. Its totient is φ = 130838400.

The previous prime is 152644831. The next prime is 152644909. The reversal of 152644849 is 948446251.

It can be written as a sum of positive squares in only one way, i.e., 147501025 + 5143824 = 12145^2 + 2268^2 .

It is not a de Polignac number, because 152644849 - 2⁹ = 152644337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152644049) 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 in 5 ways as a sum of consecutive naturals, for example, 1557552 + ... + 1557649.

It is an arithmetic number, because the mean of its divisors is an integer number (29594419).

Almost surely, 2^152644849 is an apocalyptic number.

It is an amenable number.

152644849 is a deficient number, since it is larger than the sum of its proper divisors (24921665).

152644849 is an equidigital number, since it uses as much as digits as its factorization.

152644849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115215 (or 3115208 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 152644849 is about 12354.9524078403. The cubic root of 152644849 is about 534.4339650584.

The spelling of 152644849 in words is "one hundred fifty-two million, six hundred forty-four thousand, eight hundred forty-nine".