149401698 has 16 divisors (see below), whose sum is σ = 311795136. Its totient is φ = 47635280.

The previous prime is 149401691. The next prime is 149401709. The reversal of 149401698 is 896104941.

It is not an unprimeable number, because it can be changed into a prime (149401691) 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, 541173 + ... + 541448.

It is an arithmetic number, because the mean of its divisors is an integer number (19487196).

Almost surely, 2^149401698 is an apocalyptic number.

149401698 is an abundant number, since it is smaller than the sum of its proper divisors (162393438).

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

149401698 is a wasteful number, since it uses less digits than its factorization.

149401698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082649.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 149401698 is about 12222.9987318988. The cubic root of 149401698 is about 530.6219090942.

The spelling of 149401698 in words is "one hundred forty-nine million, four hundred one thousand, six hundred ninety-eight".