149598138 has 8 divisors (see below), whose sum is σ = 299196288. Its totient is φ = 49866044.

The previous prime is 149598131. The next prime is 149598139. The reversal of 149598138 is 831895941.

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

149598138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (149598131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12466506 + ... + 12466517.

It is an arithmetic number, because the mean of its divisors is an integer number (37399536).

Almost surely, 2^149598138 is an apocalyptic number.

149598138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

149598138 is a wasteful number, since it uses less digits than its factorization.

149598138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24933028.

The product of its digits is 311040, while the sum is 48.

The square root of 149598138 is about 12231.0317635104. The cubic root of 149598138 is about 530.8543690063.

The spelling of 149598138 in words is "one hundred forty-nine million, five hundred ninety-eight thousand, one hundred thirty-eight".