61204849 has 2 divisors, whose sum is σ = 61204850. Its totient is φ = 61204848.

The previous prime is 61204813. The next prime is 61204853. The reversal of 61204849 is 94840216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52823824 + 8381025 = 7268^2 + 2895^2 .

It is a cyclic number.

It is not a de Polignac number, because 61204849 - 2⁹ = 61204337 is a prime.

It is a super-2 number, since 2×61204849² = 7492067082225602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61204859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30602424 + 30602425.

It is an arithmetic number, because the mean of its divisors is an integer number (30602425).

Almost surely, 2^61204849 is an apocalyptic number.

It is an amenable number.

61204849 is a deficient number, since it is larger than the sum of its proper divisors (1).

61204849 is an equidigital number, since it uses as much as digits as its factorization.

61204849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 61204849 is about 7823.3527978738. The cubic root of 61204849 is about 394.0898748823.

The spelling of 61204849 in words is "sixty-one million, two hundred four thousand, eight hundred forty-nine".