150256649 has 2 divisors, whose sum is σ = 150256650. Its totient is φ = 150256648.

The previous prime is 150256619. The next prime is 150256669. The reversal of 150256649 is 946652051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79780624 + 70476025 = 8932^2 + 8395^2 .

It is a cyclic number.

It is not a de Polignac number, because 150256649 - 2²⁴ = 133479433 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (150256619) 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, 75128324 + 75128325.

It is an arithmetic number, because the mean of its divisors is an integer number (75128325).

Almost surely, 2^150256649 is an apocalyptic number.

It is an amenable number.

150256649 is a deficient number, since it is larger than the sum of its proper divisors (1).

150256649 is an equidigital number, since it uses as much as digits as its factorization.

150256649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 150256649 is about 12257.9218874979. The cubic root of 150256649 is about 531.6321455471.

The spelling of 150256649 in words is "one hundred fifty million, two hundred fifty-six thousand, six hundred forty-nine".