61108357 has 2 divisors, whose sum is σ = 61108358. Its totient is φ = 61108356.

The previous prime is 61108337. The next prime is 61108363. The reversal of 61108357 is 75380116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57744801 + 3363556 = 7599^2 + 1834^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61108357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61108337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30554178 + 30554179.

It is an arithmetic number, because the mean of its divisors is an integer number (30554179).

Almost surely, 2^61108357 is an apocalyptic number.

It is an amenable number.

61108357 is a deficient number, since it is larger than the sum of its proper divisors (1).

61108357 is an equidigital number, since it uses as much as digits as its factorization.

61108357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 61108357 is about 7817.1834441824. The cubic root of 61108357 is about 393.8826662389.

The spelling of 61108357 in words is "sixty-one million, one hundred eight thousand, three hundred fifty-seven".