149325989 has 2 divisors, whose sum is σ = 149325990. Its totient is φ = 149325988.

The previous prime is 149325961. The next prime is 149326013. The reversal of 149325989 is 989523941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99341089 + 49984900 = 9967^2 + 7070^2 .

It is a cyclic number.

It is not a de Polignac number, because 149325989 - 2²⁰ = 148277413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149325919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74662994 + 74662995.

It is an arithmetic number, because the mean of its divisors is an integer number (74662995).

Almost surely, 2^149325989 is an apocalyptic number.

It is an amenable number.

149325989 is a deficient number, since it is larger than the sum of its proper divisors (1).

149325989 is an equidigital number, since it uses as much as digits as its factorization.

149325989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 50.

The square root of 149325989 is about 12219.9013498473. The cubic root of 149325989 is about 530.5322634333.

The spelling of 149325989 in words is "one hundred forty-nine million, three hundred twenty-five thousand, nine hundred eighty-nine".