61314997 has 2 divisors, whose sum is σ = 61314998. Its totient is φ = 61314996.

The previous prime is 61314977. The next prime is 61315003. The reversal of 61314997 is 79941316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55487601 + 5827396 = 7449^2 + 2414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61314997 is a prime.

It is a super-2 number, since 2×61314997² = 7519057714220018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61314917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30657498 + 30657499.

It is an arithmetic number, because the mean of its divisors is an integer number (30657499).

Almost surely, 2^61314997 is an apocalyptic number.

It is an amenable number.

61314997 is a deficient number, since it is larger than the sum of its proper divisors (1).

61314997 is an equidigital number, since it uses as much as digits as its factorization.

61314997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 61314997 is about 7830.3893262085. The cubic root of 61314997 is about 394.3261426411.

The spelling of 61314997 in words is "sixty-one million, three hundred fourteen thousand, nine hundred ninety-seven".