149794874 has 4 divisors (see below), whose sum is σ = 224692314. Its totient is φ = 74897436.

The previous prime is 149794867. The next prime is 149794891. The reversal of 149794874 is 478497941.

149794874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478497941 = 29 ⋅16499929.

It can be written as a sum of positive squares in only one way, i.e., 147792649 + 2002225 = 12157^2 + 1415^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37448717 + ... + 37448720.

Almost surely, 2^149794874 is an apocalyptic number.

149794874 is a deficient number, since it is larger than the sum of its proper divisors (74897440).

149794874 is an equidigital number, since it uses as much as digits as its factorization.

149794874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74897439.

The product of its digits is 2032128, while the sum is 53.

The square root of 149794874 is about 12239.0716151185. The cubic root of 149794874 is about 531.0869753249.

The spelling of 149794874 in words is "one hundred forty-nine million, seven hundred ninety-four thousand, eight hundred seventy-four".