149085805 has 16 divisors (see below), whose sum is σ = 197069184. Its totient is φ = 107369280.

The previous prime is 149085791. The next prime is 149085821. The reversal of 149085805 is 508580941.

It is not a de Polignac number, because 149085805 - 2¹¹ = 149083757 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, 7494 + ... + 18823.

It is an arithmetic number, because the mean of its divisors is an integer number (12316824).

Almost surely, 2^149085805 is an apocalyptic number.

It is an amenable number.

149085805 is a deficient number, since it is larger than the sum of its proper divisors (47983379).

149085805 is a wasteful number, since it uses less digits than its factorization.

149085805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26436.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 149085805 is about 12210.0698196202. The cubic root of 149085805 is about 530.2476651920.

The spelling of 149085805 in words is "one hundred forty-nine million, eighty-five thousand, eight hundred five".