150261689 has 2 divisors, whose sum is σ = 150261690. Its totient is φ = 150261688.

The previous prime is 150261677. The next prime is 150261719. The reversal of 150261689 is 986162051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97219600 + 53042089 = 9860^2 + 7283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150261689 is a prime.

It is a super-2 number, since 2×150261689² = 45157150362265442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (150261889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75130844 + 75130845.

It is an arithmetic number, because the mean of its divisors is an integer number (75130845).

Almost surely, 2^150261689 is an apocalyptic number.

It is an amenable number.

150261689 is a deficient number, since it is larger than the sum of its proper divisors (1).

150261689 is an equidigital number, since it uses as much as digits as its factorization.

150261689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 150261689 is about 12258.1274671134. The cubic root of 150261689 is about 531.6380895904.

The spelling of 150261689 in words is "one hundred fifty million, two hundred sixty-one thousand, six hundred eighty-nine".