3149209755 has 24 divisors (see below), whose sum is σ = 5460204672. Its totient is φ = 1679094144.

The previous prime is 3149209753. The next prime is 3149209793. The reversal of 3149209755 is 5579029413.

It is a happy number.

It is not a de Polignac number, because 3149209755 - 2¹ = 3149209753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3149209755.

It is not an unprimeable number, because it can be changed into a prime (3149209753) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 192247 + ... + 207983.

It is an arithmetic number, because the mean of its divisors is an integer number (227508528).

Almost surely, 2^3149209755 is an apocalyptic number.

3149209755 is a deficient number, since it is larger than the sum of its proper divisors (2310994917).

3149209755 is a wasteful number, since it uses less digits than its factorization.

3149209755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20195 (or 20192 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 3149209755 is about 56117.8202980123. The cubic root of 3149209755 is about 1465.7746147169.

The spelling of 3149209755 in words is "three billion, one hundred forty-nine million, two hundred nine thousand, seven hundred fifty-five".