61413211 has 2 divisors, whose sum is σ = 61413212. Its totient is φ = 61413210.

The previous prime is 61413199. The next prime is 61413217. The reversal of 61413211 is 11231416.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61413211 is a prime.

It is not a weakly prime, because it can be changed into another prime (61413217) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30706605 + 30706606.

It is an arithmetic number, because the mean of its divisors is an integer number (30706606).

Almost surely, 2^61413211 is an apocalyptic number.

61413211 is a deficient number, since it is larger than the sum of its proper divisors (1).

61413211 is an equidigital number, since it uses as much as digits as its factorization.

61413211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

The square root of 61413211 is about 7836.6581525546. The cubic root of 61413211 is about 394.5365734208.

Adding to 61413211 its reverse (11231416), we get a palindrome (72644627).

The spelling of 61413211 in words is "sixty-one million, four hundred thirteen thousand, two hundred eleven".