149802775 has 6 divisors (see below), whose sum is σ = 185755472. Its totient is φ = 119842200.

The previous prime is 149802767. The next prime is 149802781. The reversal of 149802775 is 577208941.

It is not a de Polignac number, because 149802775 - 2³ = 149802767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2996031 + ... + 2996080.

Almost surely, 2^149802775 is an apocalyptic number.

149802775 is a deficient number, since it is larger than the sum of its proper divisors (35952697).

149802775 is an equidigital number, since it uses as much as digits as its factorization.

149802775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992121 (or 5992116 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 149802775 is about 12239.3943886125. The cubic root of 149802775 is about 531.0963126369.

The spelling of 149802775 in words is "one hundred forty-nine million, eight hundred two thousand, seven hundred seventy-five".