149111885 has 16 divisors (see below), whose sum is σ = 193191600. Its totient is φ = 109831680.

The previous prime is 149111839. The next prime is 149111909. The reversal of 149111885 is 588111941.

It can be written as a sum of positive squares in 8 ways, for example, as 84695209 + 64416676 = 9203^2 + 8026^2 .

It is not a de Polignac number, because 149111885 - 2¹⁴ = 149095501 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 24641 + ... + 30089.

It is an arithmetic number, because the mean of its divisors is an integer number (12074475).

Almost surely, 2^149111885 is an apocalyptic number.

It is an amenable number.

149111885 is a deficient number, since it is larger than the sum of its proper divisors (44079715).

149111885 is a wasteful number, since it uses less digits than its factorization.

149111885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888.

The product of its digits is 11520, while the sum is 38.

The square root of 149111885 is about 12211.1377438796. The cubic root of 149111885 is about 530.2785826287.

The spelling of 149111885 in words is "one hundred forty-nine million, one hundred eleven thousand, eight hundred eighty-five".