149492385 has 120 divisors (see below), whose sum is σ = 323110656. Its totient is φ = 66134880.

The previous prime is 149492377. The next prime is 149492389. The reversal of 149492385 is 583294941.

It is not a de Polignac number, because 149492385 - 2³ = 149492377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 149492385.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149492389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4822320 + ... + 4822350.

Almost surely, 2^149492385 is an apocalyptic number.

149492385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149492385 is an abundant number, since it is smaller than the sum of its proper divisors (173618271).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149492385 is an frugal number, since it uses more digits than its factorization.

149492385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 46 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 149492385 is about 12226.7078561647. The cubic root of 149492385 is about 530.7292500785.

The spelling of 149492385 in words is "one hundred forty-nine million, four hundred ninety-two thousand, three hundred eighty-five".