3144985133 has 4 divisors (see below), whose sum is σ = 3146193180. Its totient is φ = 3143777088.

The previous prime is 3144985111. The next prime is 3144985141. The reversal of 3144985133 is 3315894413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1539620644 + 1605364489 = 39238^2 + 40067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3144985133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3144985153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600110 + ... + 605327.

It is an arithmetic number, because the mean of its divisors is an integer number (786548295).

Almost surely, 2^3144985133 is an apocalyptic number.

It is an amenable number.

3144985133 is a deficient number, since it is larger than the sum of its proper divisors (1208047).

3144985133 is a wasteful number, since it uses less digits than its factorization.

3144985133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208046.

The product of its digits is 155520, while the sum is 41.

The square root of 3144985133 is about 56080.1670200794. The cubic root of 3144985133 is about 1465.1188825160.

The spelling of 3144985133 in words is "three billion, one hundred forty-four million, nine hundred eighty-five thousand, one hundred thirty-three".