149294785 has 4 divisors (see below), whose sum is σ = 179153748. Its totient is φ = 119435824.

The previous prime is 149294777. The next prime is 149294801. The reversal of 149294785 is 587492941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587492941 = 7 ⋅83927563.

It can be written as a sum of positive squares in 2 ways, for example, as 85821696 + 63473089 = 9264^2 + 7967^2 .

It is a cyclic number.

It is not a de Polignac number, because 149294785 - 2³ = 149294777 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14929474 + ... + 14929483.

It is an arithmetic number, because the mean of its divisors is an integer number (44788437).

Almost surely, 2^149294785 is an apocalyptic number.

It is an amenable number.

149294785 is a deficient number, since it is larger than the sum of its proper divisors (29858963).

149294785 is an equidigital number, since it uses as much as digits as its factorization.

149294785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29858962.

The product of its digits is 725760, while the sum is 49.

The square root of 149294785 is about 12218.6245134221. The cubic root of 149294785 is about 530.4953065220.

The spelling of 149294785 in words is "one hundred forty-nine million, two hundred ninety-four thousand, seven hundred eighty-five".