2149949833 has 2 divisors, whose sum is σ = 2149949834. Its totient is φ = 2149949832.

The previous prime is 2149949803. The next prime is 2149949869. The reversal of 2149949833 is 3389499412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2058709129 + 91240704 = 45373^2 + 9552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2149949833 is a prime.

It is not a weakly prime, because it can be changed into another prime (2149949803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074974916 + 1074974917.

It is an arithmetic number, because the mean of its divisors is an integer number (1074974917).

Almost surely, 2^2149949833 is an apocalyptic number.

It is an amenable number.

2149949833 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149949833 is an equidigital number, since it uses as much as digits as its factorization.

2149949833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 52.

The square root of 2149949833 is about 46367.5515096495. The cubic root of 2149949833 is about 1290.6528420402.

The spelling of 2149949833 in words is "two billion, one hundred forty-nine million, nine hundred forty-nine thousand, eight hundred thirty-three".