149684398 has 8 divisors (see below), whose sum is σ = 225063720. Its totient is φ = 74663160.

The previous prime is 149684393. The next prime is 149684407. The reversal of 149684398 is 893486941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149684393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88473 + ... + 90148.

It is an arithmetic number, because the mean of its divisors is an integer number (28132965).

Almost surely, 2^149684398 is an apocalyptic number.

149684398 is a deficient number, since it is larger than the sum of its proper divisors (75379322).

149684398 is a wasteful number, since it uses less digits than its factorization.

149684398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179042.

The product of its digits is 1492992, while the sum is 52.

The square root of 149684398 is about 12234.5575318440. The cubic root of 149684398 is about 530.9563816382.

It can be divided in two parts, 1496843 and 98, that added together give a palindrome (1496941).

The spelling of 149684398 in words is "one hundred forty-nine million, six hundred eighty-four thousand, three hundred ninety-eight".