61244567 has 2 divisors, whose sum is σ = 61244568. Its totient is φ = 61244566.

The previous prime is 61244551. The next prime is 61244569. The reversal of 61244567 is 76544216.

61244567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61244567 - 2⁴ = 61244551 is a prime.

Together with 61244569, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61244569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30622283 + 30622284.

It is an arithmetic number, because the mean of its divisors is an integer number (30622284).

Almost surely, 2^61244567 is an apocalyptic number.

61244567 is a deficient number, since it is larger than the sum of its proper divisors (1).

61244567 is an equidigital number, since it uses as much as digits as its factorization.

61244567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 61244567 is about 7825.8908119140. The cubic root of 61244567 is about 394.1751027540.

The spelling of 61244567 in words is "sixty-one million, two hundred forty-four thousand, five hundred sixty-seven".