149890456 has 16 divisors (see below), whose sum is σ = 290111040. Its totient is φ = 72527520.

The previous prime is 149890451. The next prime is 149890459. The reversal of 149890456 is 654098941.

It is a happy number.

149890456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149890451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301951 + ... + 302446.

It is an arithmetic number, because the mean of its divisors is an integer number (18131940).

Almost surely, 2^149890456 is an apocalyptic number.

It is an amenable number.

149890456 is a deficient number, since it is larger than the sum of its proper divisors (140220584).

149890456 is a wasteful number, since it uses less digits than its factorization.

149890456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604434 (or 604430 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 149890456 is about 12242.9757820556. The cubic root of 149890456 is about 531.1999110145.

The spelling of 149890456 in words is "one hundred forty-nine million, eight hundred ninety thousand, four hundred fifty-six".