149085589 has 2 divisors, whose sum is σ = 149085590. Its totient is φ = 149085588.

The previous prime is 149085583. The next prime is 149085593. The reversal of 149085589 is 985580941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103184964 + 45900625 = 10158^2 + 6775^2 .

It is a cyclic number.

It is not a de Polignac number, because 149085589 - 2³ = 149085581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149085581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74542794 + 74542795.

It is an arithmetic number, because the mean of its divisors is an integer number (74542795).

Almost surely, 2^149085589 is an apocalyptic number.

It is an amenable number.

149085589 is a deficient number, since it is larger than the sum of its proper divisors (1).

149085589 is an equidigital number, since it uses as much as digits as its factorization.

149085589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 49.

The square root of 149085589 is about 12210.0609744587. The cubic root of 149085589 is about 530.2474091123.

The spelling of 149085589 in words is "one hundred forty-nine million, eighty-five thousand, five hundred eighty-nine".