2142049489 has 2 divisors, whose sum is σ = 2142049490. Its totient is φ = 2142049488.

The previous prime is 2142049451. The next prime is 2142049541. The reversal of 2142049489 is 9849402412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1400031889 + 742017600 = 37417^2 + 27240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142049489 is a prime.

It is a super-2 number, since 2×2142049489² = 9176752026650322242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2142047489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071024744 + 1071024745.

It is an arithmetic number, because the mean of its divisors is an integer number (1071024745).

Almost surely, 2^2142049489 is an apocalyptic number.

It is an amenable number.

2142049489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142049489 is an equidigital number, since it uses as much as digits as its factorization.

2142049489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 2142049489 is about 46282.2805077710. The cubic root of 2142049489 is about 1289.0699963173.

The spelling of 2142049489 in words is "two billion, one hundred forty-two million, forty-nine thousand, four hundred eighty-nine".