149099742 has 48 divisors (see below), whose sum is σ = 356419440. Its totient is φ = 44668800.

The previous prime is 149099719. The next prime is 149099779. The reversal of 149099742 is 247990941.

It is a happy number.

149099742 is a `hidden beast` number, since 1 + 490 + 99 + 74 + 2 = 666.

149099742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13392 + ... + 21852.

It is an arithmetic number, because the mean of its divisors is an integer number (7425405).

Almost surely, 2^149099742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149099742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178209720).

149099742 is an abundant number, since it is smaller than the sum of its proper divisors (207319698).

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

149099742 is a wasteful number, since it uses less digits than its factorization.

149099742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8569 (or 8566 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 149099742 is about 12210.6405237399. The cubic root of 149099742 is about 530.2641877385.

The spelling of 149099742 in words is "one hundred forty-nine million, ninety-nine thousand, seven hundred forty-two".