149336889 has 32 divisors (see below), whose sum is σ = 223104000. Its totient is φ = 88231680.

The previous prime is 149336879. The next prime is 149336899. The reversal of 149336889 is 988633941.

It is an interprime number because it is at equal distance from previous prime (149336879) and next prime (149336899).

It is not a de Polignac number, because 149336889 - 2²⁰ = 148288313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149336809) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179727 + ... + 180555.

It is an arithmetic number, because the mean of its divisors is an integer number (6972000).

Almost surely, 2^149336889 is an apocalyptic number.

It is an amenable number.

149336889 is a deficient number, since it is larger than the sum of its proper divisors (73767111).

149336889 is a wasteful number, since it uses less digits than its factorization.

149336889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025.

The product of its digits is 1119744, while the sum is 51.

The square root of 149336889 is about 12220.3473354893. The cubic root of 149336889 is about 530.5451717936.

The spelling of 149336889 in words is "one hundred forty-nine million, three hundred thirty-six thousand, eight hundred eighty-nine".