149390445 has 32 divisors (see below), whose sum is σ = 252604800. Its totient is φ = 75181824.

The previous prime is 149390399. The next prime is 149390447. The reversal of 149390445 is 544093941.

149390445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 149390445 - 2⁷ = 149390317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149390447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82611 + ... + 84399.

It is an arithmetic number, because the mean of its divisors is an integer number (7893900).

Almost surely, 2^149390445 is an apocalyptic number.

149390445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149390445 is a deficient number, since it is larger than the sum of its proper divisors (103214355).

149390445 is a wasteful number, since it uses less digits than its factorization.

149390445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 149390445 is about 12222.5384024760. The cubic root of 149390445 is about 530.6085865364.

The spelling of 149390445 in words is "one hundred forty-nine million, three hundred ninety thousand, four hundred forty-five".