61324849 has 2 divisors, whose sum is σ = 61324850. Its totient is φ = 61324848.

The previous prime is 61324847. The next prime is 61324859. The reversal of 61324849 is 94842316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38044224 + 23280625 = 6168^2 + 4825^2 .

It is a cyclic number.

It is not a de Polignac number, because 61324849 - 2¹ = 61324847 is a prime.

Together with 61324847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61324843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30662424 + 30662425.

It is an arithmetic number, because the mean of its divisors is an integer number (30662425).

Almost surely, 2^61324849 is an apocalyptic number.

It is an amenable number.

61324849 is a deficient number, since it is larger than the sum of its proper divisors (1).

61324849 is an equidigital number, since it uses as much as digits as its factorization.

61324849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 61324849 is about 7831.0183884345. The cubic root of 61324849 is about 394.3472614174.

The spelling of 61324849 in words is "sixty-one million, three hundred twenty-four thousand, eight hundred forty-nine".