149748786 has 72 divisors (see below), whose sum is σ = 366202512. Its totient is φ = 43858800.

The previous prime is 149748757. The next prime is 149748799. The reversal of 149748786 is 687847941.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 189885 + ... + 190671.

It is an arithmetic number, because the mean of its divisors is an integer number (5086146).

Almost surely, 2^149748786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149748786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183101256).

149748786 is an abundant number, since it is smaller than the sum of its proper divisors (216453726).

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

149748786 is a wasteful number, since it uses less digits than its factorization.

149748786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 834 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 149748786 is about 12237.1886477246. The cubic root of 149748786 is about 531.0325025058.

The spelling of 149748786 in words is "one hundred forty-nine million, seven hundred forty-eight thousand, seven hundred eighty-six".