2142381737 has 2 divisors, whose sum is σ = 2142381738. Its totient is φ = 2142381736.

The previous prime is 2142381721. The next prime is 2142381781. The reversal of 2142381737 is 7371832412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1983722521 + 158659216 = 44539^2 + 12596^2 .

It is a cyclic number.

It is not a de Polignac number, because 2142381737 - 2⁴ = 2142381721 is a prime.

It is a super-2 number, since 2×2142381737² = 9179599014062274338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2142381737.

It is not a weakly prime, because it can be changed into another prime (2142381707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071190868 + 1071190869.

It is an arithmetic number, because the mean of its divisors is an integer number (1071190869).

Almost surely, 2^2142381737 is an apocalyptic number.

It is an amenable number.

2142381737 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142381737 is an equidigital number, since it uses as much as digits as its factorization.

2142381737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 2142381737 is about 46285.8697336455. The cubic root of 2142381737 is about 1289.1366410250.

The spelling of 2142381737 in words is "two billion, one hundred forty-two million, three hundred eighty-one thousand, seven hundred thirty-seven".