149315998 has 32 divisors (see below), whose sum is σ = 256374720. Its totient is φ = 64611840.

The previous prime is 149315993. The next prime is 149316001. The reversal of 149315998 is 899513941.

149315998 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 (149315993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158208 + ... + 159148.

It is an arithmetic number, because the mean of its divisors is an integer number (8011710).

Almost surely, 2^149315998 is an apocalyptic number.

149315998 is a deficient number, since it is larger than the sum of its proper divisors (107058722).

149315998 is a wasteful number, since it uses less digits than its factorization.

149315998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332.

The product of its digits is 349920, while the sum is 49.

The square root of 149315998 is about 12219.4925426550. The cubic root of 149315998 is about 530.5204310075.

The spelling of 149315998 in words is "one hundred forty-nine million, three hundred fifteen thousand, nine hundred ninety-eight".