2142735949 has 2 divisors, whose sum is σ = 2142735950. Its totient is φ = 2142735948.

The previous prime is 2142735941. The next prime is 2142735989. The reversal of 2142735949 is 9495372412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2023380324 + 119355625 = 44982^2 + 10925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142735949 - 2³ = 2142735941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2142735899 and 2142735908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142735941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071367974 + 1071367975.

It is an arithmetic number, because the mean of its divisors is an integer number (1071367975).

Almost surely, 2^2142735949 is an apocalyptic number.

It is an amenable number.

2142735949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142735949 is an equidigital number, since it uses as much as digits as its factorization.

2142735949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 2142735949 is about 46289.6959268475. The cubic root of 2142735949 is about 1289.2076838426.

The spelling of 2142735949 in words is "two billion, one hundred forty-two million, seven hundred thirty-five thousand, nine hundred forty-nine".