61452761 has 2 divisors, whose sum is σ = 61452762. Its totient is φ = 61452760.

The previous prime is 61452749. The next prime is 61452763. The reversal of 61452761 is 16725416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61387225 + 65536 = 7835^2 + 256^2 .

It is a cyclic number.

It is not a de Polignac number, because 61452761 - 2⁶ = 61452697 is a prime.

Together with 61452763, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (61452763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30726380 + 30726381.

It is an arithmetic number, because the mean of its divisors is an integer number (30726381).

Almost surely, 2^61452761 is an apocalyptic number.

It is an amenable number.

61452761 is a deficient number, since it is larger than the sum of its proper divisors (1).

61452761 is an equidigital number, since it uses as much as digits as its factorization.

61452761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 61452761 is about 7839.1811434614. The cubic root of 61452761 is about 394.6212488666.

The spelling of 61452761 in words is "sixty-one million, four hundred fifty-two thousand, seven hundred sixty-one".