61144297 has 2 divisors, whose sum is σ = 61144298. Its totient is φ = 61144296.

The previous prime is 61144253. The next prime is 61144309. The reversal of 61144297 is 79244116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43705321 + 17438976 = 6611^2 + 4176^2 .

It is a cyclic number.

It is not a de Polignac number, because 61144297 - 2⁷ = 61144169 is a prime.

It is not a weakly prime, because it can be changed into another prime (61144217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30572148 + 30572149.

It is an arithmetic number, because the mean of its divisors is an integer number (30572149).

Almost surely, 2^61144297 is an apocalyptic number.

It is an amenable number.

61144297 is a deficient number, since it is larger than the sum of its proper divisors (1).

61144297 is an equidigital number, since it uses as much as digits as its factorization.

61144297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 61144297 is about 7819.4818882072. The cubic root of 61144297 is about 393.9598699111.

The spelling of 61144297 in words is "sixty-one million, one hundred forty-four thousand, two hundred ninety-seven".