61327901 has 2 divisors, whose sum is σ = 61327902. Its totient is φ = 61327900.

The previous prime is 61327897. The next prime is 61327921. The reversal of 61327901 is 10972316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56640676 + 4687225 = 7526^2 + 2165^2 .

It is a cyclic number.

It is not a de Polignac number, because 61327901 - 2² = 61327897 is a prime.

It is a super-2 number, since 2×61327901² = 7522222882131602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61327921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30663950 + 30663951.

It is an arithmetic number, because the mean of its divisors is an integer number (30663951).

Almost surely, 2^61327901 is an apocalyptic number.

It is an amenable number.

61327901 is a deficient number, since it is larger than the sum of its proper divisors (1).

61327901 is an equidigital number, since it uses as much as digits as its factorization.

61327901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 61327901 is about 7831.2132521085. The cubic root of 61327901 is about 394.3538032347.

The spelling of 61327901 in words is "sixty-one million, three hundred twenty-seven thousand, nine hundred one".