2133999949 has 2 divisors, whose sum is σ = 2133999950. Its totient is φ = 2133999948.

The previous prime is 2133999943. The next prime is 2133999971. The reversal of 2133999949 is 9499993312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1823887849 + 310112100 = 42707^2 + 17610^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133999949 - 2²¹ = 2131902797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2133999893 and 2133999902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2133999943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066999974 + 1066999975.

It is an arithmetic number, because the mean of its divisors is an integer number (1066999975).

Almost surely, 2^2133999949 is an apocalyptic number.

It is an amenable number.

2133999949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133999949 is an equidigital number, since it uses as much as digits as its factorization.

2133999949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4251528, while the sum is 58.

The square root of 2133999949 is about 46195.2372977994. The cubic root of 2133999949 is about 1287.4532510000.

The spelling of 2133999949 in words is "two billion, one hundred thirty-three million, nine hundred ninety-nine thousand, nine hundred forty-nine".