61340567 has 2 divisors, whose sum is σ = 61340568. Its totient is φ = 61340566.

The previous prime is 61340527. The next prime is 61340623. The reversal of 61340567 is 76504316.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61340567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61340507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30670283 + 30670284.

It is an arithmetic number, because the mean of its divisors is an integer number (30670284).

Almost surely, 2^61340567 is an apocalyptic number.

61340567 is a deficient number, since it is larger than the sum of its proper divisors (1).

61340567 is an equidigital number, since it uses as much as digits as its factorization.

61340567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 61340567 is about 7832.0218973136. The cubic root of 61340567 is about 394.3809498861.

The spelling of 61340567 in words is "sixty-one million, three hundred forty thousand, five hundred sixty-seven".