514315661 has 2 divisors, whose sum is σ = 514315662. Its totient is φ = 514315660.

The previous prime is 514315649. The next prime is 514315709. The reversal of 514315661 is 166513415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317053636 + 197262025 = 17806^2 + 14045^2 .

It is a cyclic number.

It is not a de Polignac number, because 514315661 - 2⁶ = 514315597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514315621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257157830 + 257157831.

It is an arithmetic number, because the mean of its divisors is an integer number (257157831).

Almost surely, 2^514315661 is an apocalyptic number.

It is an amenable number.

514315661 is a deficient number, since it is larger than the sum of its proper divisors (1).

514315661 is an equidigital number, since it uses as much as digits as its factorization.

514315661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 514315661 is about 22678.5286339304. The cubic root of 514315661 is about 801.2042597260.

The spelling of 514315661 in words is "five hundred fourteen million, three hundred fifteen thousand, six hundred sixty-one".