149225405 has 16 divisors (see below), whose sum is σ = 216691200. Its totient is φ = 96306432.

The previous prime is 149225393. The next prime is 149225407. The reversal of 149225405 is 504522941.

It is a cyclic number.

It is not a de Polignac number, because 149225405 - 2⁴ = 149225389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149225407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124805 + ... + 125994.

It is an arithmetic number, because the mean of its divisors is an integer number (13543200).

Almost surely, 2^149225405 is an apocalyptic number.

It is an amenable number.

149225405 is a deficient number, since it is larger than the sum of its proper divisors (67465795).

149225405 is a wasteful number, since it uses less digits than its factorization.

149225405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250828.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 149225405 is about 12215.7850750576. The cubic root of 149225405 is about 530.4131168521.

The spelling of 149225405 in words is "one hundred forty-nine million, two hundred twenty-five thousand, four hundred five".