61069247 has 2 divisors, whose sum is σ = 61069248. Its totient is φ = 61069246.

The previous prime is 61069243. The next prime is 61069259. The reversal of 61069247 is 74296016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61069247 - 2² = 61069243 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61069243) 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, 30534623 + 30534624.

It is an arithmetic number, because the mean of its divisors is an integer number (30534624).

Almost surely, 2^61069247 is an apocalyptic number.

61069247 is a deficient number, since it is larger than the sum of its proper divisors (1).

61069247 is an equidigital number, since it uses as much as digits as its factorization.

61069247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 61069247 is about 7814.6815034267. The cubic root of 61069247 is about 393.7986186039.

It can be divided in two parts, 61069 and 247, that added together give a palindrome (61316).

The spelling of 61069247 in words is "sixty-one million, sixty-nine thousand, two hundred forty-seven".