2149669413 has 6 divisors (see below), whose sum is σ = 3105078054. Its totient is φ = 1433112936.

The previous prime is 2149669411. The next prime is 2149669433. The reversal of 2149669413 is 3149669412.

It can be written as a sum of positive squares in only one way, i.e., 1315730529 + 833938884 = 36273^2 + 28878^2 .

It is not a de Polignac number, because 2149669413 - 2¹ = 2149669411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149669411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119426070 + ... + 119426087.

It is an arithmetic number, because the mean of its divisors is an integer number (517513009).

Almost surely, 2^2149669413 is an apocalyptic number.

It is an amenable number.

2149669413 is a deficient number, since it is larger than the sum of its proper divisors (955408641).

2149669413 is a wasteful number, since it uses less digits than its factorization.

2149669413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238852163 (or 238852160 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 2149669413 is about 46364.5275291359. The cubic root of 2149669413 is about 1290.5967259081.

Subtracting 2149669413 from its reverse (3149669412), we obtain a palindrome (999999999).

It can be divided in two parts, 21496 and 69413, that added together give a palindrome (90909).

The spelling of 2149669413 in words is "two billion, one hundred forty-nine million, six hundred sixty-nine thousand, four hundred thirteen".