61314857 has 2 divisors, whose sum is σ = 61314858. Its totient is φ = 61314856.

The previous prime is 61314811. The next prime is 61314863. The reversal of 61314857 is 75841316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60590656 + 724201 = 7784^2 + 851^2 .

It is a cyclic number.

It is not a de Polignac number, because 61314857 - 2⁶ = 61314793 is a prime.

It is not a weakly prime, because it can be changed into another prime (61314887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30657428 + 30657429.

It is an arithmetic number, because the mean of its divisors is an integer number (30657429).

Almost surely, 2^61314857 is an apocalyptic number.

It is an amenable number.

61314857 is a deficient number, since it is larger than the sum of its proper divisors (1).

61314857 is an equidigital number, since it uses as much as digits as its factorization.

61314857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 61314857 is about 7830.3803866734. The cubic root of 61314857 is about 394.3258425204.

The spelling of 61314857 in words is "sixty-one million, three hundred fourteen thousand, eight hundred fifty-seven".