150816689 has 2 divisors, whose sum is σ = 150816690. Its totient is φ = 150816688.

The previous prime is 150816671. The next prime is 150816703. The reversal of 150816689 is 986618051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112190464 + 38626225 = 10592^2 + 6215^2 .

It is a cyclic number.

It is not a de Polignac number, because 150816689 - 2²⁴ = 134039473 is a prime.

It is not a weakly prime, because it can be changed into another prime (150816619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75408344 + 75408345.

It is an arithmetic number, because the mean of its divisors is an integer number (75408345).

Almost surely, 2^150816689 is an apocalyptic number.

It is an amenable number.

150816689 is a deficient number, since it is larger than the sum of its proper divisors (1).

150816689 is an equidigital number, since it uses as much as digits as its factorization.

150816689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 150816689 is about 12280.7446435467. The cubic root of 150816689 is about 532.2918304358.

The spelling of 150816689 in words is "one hundred fifty million, eight hundred sixteen thousand, six hundred eighty-nine".