652194930281 has 2 divisors, whose sum is σ = 652194930282. Its totient is φ = 652194930280.

The previous prime is 652194930269. The next prime is 652194930287. The reversal of 652194930281 is 182039491256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 597399143056 + 54795787225 = 772916^2 + 234085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652194930281 is a prime.

It is a super-2 number, since 2×652194930281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (652194930287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326097465140 + 326097465141.

It is an arithmetic number, because the mean of its divisors is an integer number (326097465141).

Almost surely, 2^652194930281 is an apocalyptic number.

It is an amenable number.

652194930281 is a deficient number, since it is larger than the sum of its proper divisors (1).

652194930281 is an equidigital number, since it uses as much as digits as its factorization.

652194930281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 652194930281 in words is "six hundred fifty-two billion, one hundred ninety-four million, nine hundred thirty thousand, two hundred eighty-one".