149098138 has 8 divisors (see below), whose sum is σ = 255596832. Its totient is φ = 63899196.

The previous prime is 149098093. The next prime is 149098139. The reversal of 149098138 is 831890941.

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

It is a junction number, because it is equal to n+sod(n) for n = 149098094 and 149098103.

It is not an unprimeable number, because it can be changed into a prime (149098139) 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 3 ways as a sum of consecutive naturals, for example, 5324920 + ... + 5324947.

It is an arithmetic number, because the mean of its divisors is an integer number (31949604).

Almost surely, 2^149098138 is an apocalyptic number.

149098138 is a deficient number, since it is larger than the sum of its proper divisors (106498694).

149098138 is a wasteful number, since it uses less digits than its factorization.

149098138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649876.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 149098138 is about 12210.5748431431. The cubic root of 149098138 is about 530.2622862221.

The spelling of 149098138 in words is "one hundred forty-nine million, ninety-eight thousand, one hundred thirty-eight".