61072097 has 2 divisors, whose sum is σ = 61072098. Its totient is φ = 61072096.

The previous prime is 61072087. The next prime is 61072117. The reversal of 61072097 is 79027016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49505296 + 11566801 = 7036^2 + 3401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61072097 is a prime.

It is not a weakly prime, because it can be changed into another prime (61072087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30536048 + 30536049.

It is an arithmetic number, because the mean of its divisors is an integer number (30536049).

Almost surely, 2^61072097 is an apocalyptic number.

It is an amenable number.

61072097 is a deficient number, since it is larger than the sum of its proper divisors (1).

61072097 is an equidigital number, since it uses as much as digits as its factorization.

61072097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 61072097 is about 7814.8638503815. The cubic root of 61072097 is about 393.8047444837.

The spelling of 61072097 in words is "sixty-one million, seventy-two thousand, ninety-seven".