2869256149 has 4 divisors (see below), whose sum is σ = 2875792480. Its totient is φ = 2862719820.

The previous prime is 2869256129. The next prime is 2869256153. The reversal of 2869256149 is 9416529682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2869256149 - 2¹⁵ = 2869223381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2869256096 and 2869256105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2869256129) 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, 3267507 + ... + 3268384.

It is an arithmetic number, because the mean of its divisors is an integer number (718948120).

Almost surely, 2^2869256149 is an apocalyptic number.

It is an amenable number.

2869256149 is a deficient number, since it is larger than the sum of its proper divisors (6536331).

2869256149 is an equidigital number, since it uses as much as digits as its factorization.

2869256149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536330.

The product of its digits is 1866240, while the sum is 52.

The square root of 2869256149 is about 53565.4380081037. The cubic root of 2869256149 is about 1420.9859166810.

The spelling of 2869256149 in words is "two billion, eight hundred sixty-nine million, two hundred fifty-six thousand, one hundred forty-nine".