61226311 has 2 divisors, whose sum is σ = 61226312. Its totient is φ = 61226310.

The previous prime is 61226287. The next prime is 61226317. The reversal of 61226311 is 11362216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61226311 - 2⁹ = 61225799 is a prime.

It is a super-2 number, since 2×61226311² = 7497322317337442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61226317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30613155 + 30613156.

It is an arithmetic number, because the mean of its divisors is an integer number (30613156).

Almost surely, 2^61226311 is an apocalyptic number.

61226311 is a deficient number, since it is larger than the sum of its proper divisors (1).

61226311 is an equidigital number, since it uses as much as digits as its factorization.

61226311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 61226311 is about 7824.7243401924. The cubic root of 61226311 is about 394.1359331528.

Adding to 61226311 its reverse (11362216), we get a palindrome (72588527).

The spelling of 61226311 in words is "sixty-one million, two hundred twenty-six thousand, three hundred eleven".