149534845 has 16 divisors (see below), whose sum is σ = 197101440. Its totient is φ = 108402624.

The previous prime is 149534837. The next prime is 149534857. The reversal of 149534845 is 548435941.

It is a cyclic number.

It is not a de Polignac number, because 149534845 - 2³ = 149534837 is a prime.

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, 32034 + ... + 36403.

It is an arithmetic number, because the mean of its divisors is an integer number (12318840).

Almost surely, 2^149534845 is an apocalyptic number.

It is an amenable number.

149534845 is a deficient number, since it is larger than the sum of its proper divisors (47566595).

149534845 is a wasteful number, since it uses less digits than its factorization.

149534845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68484.

The product of its digits is 345600, while the sum is 43.

The square root of 149534845 is about 12228.4440956321. Note that the first 3 decimals coincide. The cubic root of 149534845 is about 530.7794926172.

The spelling of 149534845 in words is "one hundred forty-nine million, five hundred thirty-four thousand, eight hundred forty-five".