2140330457 has 2 divisors, whose sum is σ = 2140330458. Its totient is φ = 2140330456.

The previous prime is 2140330441. The next prime is 2140330469. The reversal of 2140330457 is 7540330412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1617567961 + 522762496 = 40219^2 + 22864^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140330457 - 2⁴ = 2140330441 is a prime.

It is not a weakly prime, because it can be changed into another prime (2140330057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070165228 + 1070165229.

It is an arithmetic number, because the mean of its divisors is an integer number (1070165229).

Almost surely, 2^2140330457 is an apocalyptic number.

It is an amenable number.

2140330457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140330457 is an equidigital number, since it uses as much as digits as its factorization.

2140330457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 2140330457 is about 46263.7056124993. The cubic root of 2140330457 is about 1288.7250703278.

Adding to 2140330457 its reverse (7540330412), we get a palindrome (9680660869).

The spelling of 2140330457 in words is "two billion, one hundred forty million, three hundred thirty thousand, four hundred fifty-seven".