149061138 has 32 divisors (see below), whose sum is σ = 301767360. Its totient is φ = 49083840.

The previous prime is 149061127. The next prime is 149061167. The reversal of 149061138 is 831160941.

It is a junction number, because it is equal to n+sod(n) for n = 149061099 and 149061108.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 215373 + ... + 216063.

It is an arithmetic number, because the mean of its divisors is an integer number (9430230).

Almost surely, 2^149061138 is an apocalyptic number.

149061138 is an abundant number, since it is smaller than the sum of its proper divisors (152706222).

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

149061138 is a wasteful number, since it uses less digits than its factorization.

149061138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 149061138 is about 12209.0596689508. The cubic root of 149061138 is about 530.2184195269.

The spelling of 149061138 in words is "one hundred forty-nine million, sixty-one thousand, one hundred thirty-eight".