149884645 has 16 divisors (see below), whose sum is σ = 184174848. Its totient is φ = 117046080.

The previous prime is 149884639. The next prime is 149884661. The reversal of 149884645 is 546488941.

It is a happy number.

It is not a de Polignac number, because 149884645 - 2⁷ = 149884517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133627 + ... + 134743.

It is an arithmetic number, because the mean of its divisors is an integer number (11510928).

Almost surely, 2^149884645 is an apocalyptic number.

It is an amenable number.

149884645 is a deficient number, since it is larger than the sum of its proper divisors (34290203).

149884645 is a wasteful number, since it uses less digits than its factorization.

149884645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740.

The product of its digits is 1105920, while the sum is 49.

The square root of 149884645 is about 12242.7384600015. The cubic root of 149884645 is about 531.1930463511.

The spelling of 149884645 in words is "one hundred forty-nine million, eight hundred eighty-four thousand, six hundred forty-five".