561062197 has 2 divisors, whose sum is σ = 561062198. Its totient is φ = 561062196.

The previous prime is 561062179. The next prime is 561062261. The reversal of 561062197 is 791260165.

Together with previous prime (561062179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343027441 + 218034756 = 18521^2 + 14766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561062197 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 (561062147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280531098 + 280531099.

It is an arithmetic number, because the mean of its divisors is an integer number (280531099).

Almost surely, 2^561062197 is an apocalyptic number.

It is an amenable number.

561062197 is a deficient number, since it is larger than the sum of its proper divisors (1).

561062197 is an equidigital number, since it uses as much as digits as its factorization.

561062197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 561062197 is about 23686.7515079633. The cubic root of 561062197 is about 824.7778756762. Note that the first 3 decimals are identical.

The spelling of 561062197 in words is "five hundred sixty-one million, sixty-two thousand, one hundred ninety-seven".