149552189 has 8 divisors (see below), whose sum is σ = 151262592. Its totient is φ = 147846960.

The previous prime is 149552149. The next prime is 149552209. The reversal of 149552189 is 981255941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149552189 - 2¹⁶ = 149486653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149552119) 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 in 7 ways as a sum of consecutive naturals, for example, 96152 + ... + 97694.

It is an arithmetic number, because the mean of its divisors is an integer number (18907824).

Almost surely, 2^149552189 is an apocalyptic number.

It is an amenable number.

149552189 is a deficient number, since it is larger than the sum of its proper divisors (1710403).

149552189 is a wasteful number, since it uses less digits than its factorization.

149552189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587.

The product of its digits is 129600, while the sum is 44.

The square root of 149552189 is about 12229.1532413328. The cubic root of 149552189 is about 530.8000128815.

The spelling of 149552189 in words is "one hundred forty-nine million, five hundred fifty-two thousand, one hundred eighty-nine".