152644417 has 2 divisors, whose sum is σ = 152644418. Its totient is φ = 152644416.

The previous prime is 152644409. The next prime is 152644433. The reversal of 152644417 is 714446251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140920641 + 11723776 = 11871^2 + 3424^2 .

It is an emirp because it is prime and its reverse (714446251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 152644417 - 2³ = 152644409 is a prime.

It is not a weakly prime, because it can be changed into another prime (152645417) 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, 76322208 + 76322209.

It is an arithmetic number, because the mean of its divisors is an integer number (76322209).

Almost surely, 2^152644417 is an apocalyptic number.

It is an amenable number.

152644417 is a deficient number, since it is larger than the sum of its proper divisors (1).

152644417 is an equidigital number, since it uses as much as digits as its factorization.

152644417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 34.

The square root of 152644417 is about 12354.9349249601. The cubic root of 152644417 is about 534.4334608909.

The spelling of 152644417 in words is "one hundred fifty-two million, six hundred forty-four thousand, four hundred seventeen".