149711898 has 16 divisors (see below), whose sum is σ = 342198720. Its totient is φ = 42774816.

The previous prime is 149711893. The next prime is 149711917. The reversal of 149711898 is 898117941.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149711893) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1782243 + ... + 1782326.

It is an arithmetic number, because the mean of its divisors is an integer number (21387420).

Almost surely, 2^149711898 is an apocalyptic number.

149711898 is an abundant number, since it is smaller than the sum of its proper divisors (192486822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149711898 is a wasteful number, since it uses less digits than its factorization.

149711898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564581.

The product of its digits is 145152, while the sum is 48.

The square root of 149711898 is about 12235.6813459652. The cubic root of 149711898 is about 530.9888953952.

The spelling of 149711898 in words is "one hundred forty-nine million, seven hundred eleven thousand, eight hundred ninety-eight".