2193259949 has 2 divisors, whose sum is σ = 2193259950. Its totient is φ = 2193259948.

The previous prime is 2193259909. The next prime is 2193259963. The reversal of 2193259949 is 9499523912.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2169882724 + 23377225 = 46582^2 + 4835^2 .

It is a cyclic number.

It is not a de Polignac number, because 2193259949 - 2²⁴ = 2176482733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2193259949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2193259909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096629974 + 1096629975.

It is an arithmetic number, because the mean of its divisors is an integer number (1096629975).

Almost surely, 2^2193259949 is an apocalyptic number.

It is an amenable number.

2193259949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2193259949 is an equidigital number, since it uses as much as digits as its factorization.

2193259949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1574640, while the sum is 53.

The square root of 2193259949 is about 46832.2532983413. The cubic root of 2193259949 is about 1299.2618983640.

The spelling of 2193259949 in words is "two billion, one hundred ninety-three million, two hundred fifty-nine thousand, nine hundred forty-nine".