149236146 has 96 divisors (see below), whose sum is σ = 361670400. Its totient is φ = 44271360.

The previous prime is 149236123. The next prime is 149236147. The reversal of 149236146 is 641632941.

149236146 is a `hidden beast` number, since 14 + 9 + 23 + 614 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 149236146.

It is not an unprimeable number, because it can be changed into a prime (149236147) 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 47 ways as a sum of consecutive naturals, for example, 406455 + ... + 406821.

It is an arithmetic number, because the mean of its divisors is an integer number (3767400).

Almost surely, 2^149236146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149236146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180835200).

149236146 is an abundant number, since it is smaller than the sum of its proper divisors (212434254).

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

149236146 is a wasteful number, since it uses less digits than its factorization.

149236146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 461 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 149236146 is about 12216.2247032379. The cubic root of 149236146 is about 530.4258426357.

The spelling of 149236146 in words is "one hundred forty-nine million, two hundred thirty-six thousand, one hundred forty-six".