149490285 has 16 divisors (see below), whose sum is σ = 273353856. Its totient is φ = 68338368.

The previous prime is 149490269. The next prime is 149490293. The reversal of 149490285 is 582094941.

It is not a de Polignac number, because 149490285 - 2⁴ = 149490269 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711754 + ... + 711963.

It is an arithmetic number, because the mean of its divisors is an integer number (17084616).

Almost surely, 2^149490285 is an apocalyptic number.

149490285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149490285 is a deficient number, since it is larger than the sum of its proper divisors (123863571).

149490285 is a wasteful number, since it uses less digits than its factorization.

149490285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423732.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 149490285 is about 12226.6219782898. The cubic root of 149490285 is about 530.7267649204.

The spelling of 149490285 in words is "one hundred forty-nine million, four hundred ninety thousand, two hundred eighty-five".