2149365869 has 8 divisors (see below), whose sum is σ = 2502766080. Its totient is φ = 1807552656.

The previous prime is 2149365797. The next prime is 2149365901. The reversal of 2149365869 is 9685639412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2149365869 - 2⁸ = 2149365613 is a prime.

It is a super-2 number, since 2×2149365869² = 9239547277644250322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2149365869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149361869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2896349 + ... + 2897090.

It is an arithmetic number, because the mean of its divisors is an integer number (312845760).

Almost surely, 2^2149365869 is an apocalyptic number.

It is an amenable number.

2149365869 is a deficient number, since it is larger than the sum of its proper divisors (353400211).

2149365869 is an equidigital number, since it uses as much as digits as its factorization.

2149365869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5793499.

The product of its digits is 2799360, while the sum is 53.

The square root of 2149365869 is about 46361.2539627651. The cubic root of 2149365869 is about 1290.5359768256.

The spelling of 2149365869 in words is "two billion, one hundred forty-nine million, three hundred sixty-five thousand, eight hundred sixty-nine".