150444689 has 2 divisors, whose sum is σ = 150444690. Its totient is φ = 150444688.

The previous prime is 150444683. The next prime is 150444691. The reversal of 150444689 is 986444051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112190464 + 38254225 = 10592^2 + 6185^2 .

It is a cyclic number.

It is not a de Polignac number, because 150444689 - 2⁴ = 150444673 is a prime.

Together with 150444691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (150444683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75222344 + 75222345.

It is an arithmetic number, because the mean of its divisors is an integer number (75222345).

Almost surely, 2^150444689 is an apocalyptic number.

It is an amenable number.

150444689 is a deficient number, since it is larger than the sum of its proper divisors (1).

150444689 is an equidigital number, since it uses as much as digits as its factorization.

150444689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 150444689 is about 12265.5896311592. The cubic root of 150444689 is about 531.8538250009.

The spelling of 150444689 in words is "one hundred fifty million, four hundred forty-four thousand, six hundred eighty-nine".