61346249 has 2 divisors, whose sum is σ = 61346250. Its totient is φ = 61346248.

The previous prime is 61346239. The next prime is 61346261. The reversal of 61346249 is 94264316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50410000 + 10936249 = 7100^2 + 3307^2 .

It is a cyclic number.

It is not a de Polignac number, because 61346249 - 2¹² = 61342153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (61346239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30673124 + 30673125.

It is an arithmetic number, because the mean of its divisors is an integer number (30673125).

Almost surely, 2^61346249 is an apocalyptic number.

It is an amenable number.

61346249 is a deficient number, since it is larger than the sum of its proper divisors (1).

61346249 is an equidigital number, since it uses as much as digits as its factorization.

61346249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 61346249 is about 7832.3846304941. The cubic root of 61346249 is about 394.3931267291.

The spelling of 61346249 in words is "sixty-one million, three hundred forty-six thousand, two hundred forty-nine".