61168957 has 2 divisors, whose sum is σ = 61168958. Its totient is φ = 61168956.

The previous prime is 61168931. The next prime is 61168967. The reversal of 61168957 is 75986116.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48594841 + 12574116 = 6971^2 + 3546^2 .

It is a cyclic number.

It is not a de Polignac number, because 61168957 - 2¹⁹ = 60644669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61168967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30584478 + 30584479.

It is an arithmetic number, because the mean of its divisors is an integer number (30584479).

Almost surely, 2^61168957 is an apocalyptic number.

It is an amenable number.

61168957 is a deficient number, since it is larger than the sum of its proper divisors (1).

61168957 is an equidigital number, since it uses as much as digits as its factorization.

61168957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 43.

The square root of 61168957 is about 7821.0585600672. The cubic root of 61168957 is about 394.0128252157.

The spelling of 61168957 in words is "sixty-one million, one hundred sixty-eight thousand, nine hundred fifty-seven".