3143156769 has 12 divisors (see below), whose sum is σ = 4547779236. Its totient is φ = 2091900672.

The previous prime is 3143156759. The next prime is 3143156777. The reversal of 3143156769 is 9676513413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1379156769 + 1764000000 = 37137^2 + 42000^2 .

It is not a de Polignac number, because 3143156769 - 2²¹ = 3141059617 is a prime.

It is a super-2 number, since 2×3143156769² = 19758868949021038722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3143156749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289132 + ... + 299805.

It is an arithmetic number, because the mean of its divisors is an integer number (378981603).

Almost surely, 2^3143156769 is an apocalyptic number.

It is an amenable number.

3143156769 is a deficient number, since it is larger than the sum of its proper divisors (1404622467).

3143156769 is a wasteful number, since it uses less digits than its factorization.

3143156769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589536 (or 589533 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 3143156769 is about 56063.8633078385. The cubic root of 3143156769 is about 1464.8349076816.

The spelling of 3143156769 in words is "three billion, one hundred forty-three million, one hundred fifty-six thousand, seven hundred sixty-nine".