149894185 has 72 divisors (see below), whose sum is σ = 233086680. Its totient is φ = 92123136.

The previous prime is 149894183. The next prime is 149894203. The reversal of 149894185 is 581498941.

149894185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 2223081 + 147671104 = 1491^2 + 12152^2 .

It is not a de Polignac number, because 149894185 - 2¹ = 149894183 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (149894183) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2053309 + ... + 2053381.

It is an arithmetic number, because the mean of its divisors is an integer number (3237315).

Almost surely, 2^149894185 is an apocalyptic number.

It is an amenable number.

149894185 is a deficient number, since it is larger than the sum of its proper divisors (83192495).

149894185 is a wasteful number, since it uses less digits than its factorization.

149894185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 131 counting only the distinct ones).

The product of its digits is 414720, while the sum is 49.

The square root of 149894185 is about 12243.1280725148. The cubic root of 149894185 is about 531.2043160716.

The spelling of 149894185 in words is "one hundred forty-nine million, eight hundred ninety-four thousand, one hundred eighty-five".