149560189 has 2 divisors, whose sum is σ = 149560190. Its totient is φ = 149560188.

The previous prime is 149560181. The next prime is 149560199. The reversal of 149560189 is 981065941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134676025 + 14884164 = 11605^2 + 3858^2 .

It is a cyclic number.

It is not a de Polignac number, because 149560189 - 2³ = 149560181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149560181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74780094 + 74780095.

It is an arithmetic number, because the mean of its divisors is an integer number (74780095).

Almost surely, 2^149560189 is an apocalyptic number.

It is an amenable number.

149560189 is a deficient number, since it is larger than the sum of its proper divisors (1).

149560189 is an equidigital number, since it uses as much as digits as its factorization.

149560189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 149560189 is about 12229.4803242002. The cubic root of 149560189 is about 530.8094774134.

The spelling of 149560189 in words is "one hundred forty-nine million, five hundred sixty thousand, one hundred eighty-nine".