61356311 has 2 divisors, whose sum is σ = 61356312. Its totient is φ = 61356310.

The previous prime is 61356293. The next prime is 61356359. The reversal of 61356311 is 11365316.

61356311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61356311 - 2¹⁸ = 61094167 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61356011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30678155 + 30678156.

It is an arithmetic number, because the mean of its divisors is an integer number (30678156).

Almost surely, 2^61356311 is an apocalyptic number.

61356311 is a deficient number, since it is larger than the sum of its proper divisors (1).

61356311 is an equidigital number, since it uses as much as digits as its factorization.

61356311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 26.

The square root of 61356311 is about 7833.0269372702. The cubic root of 61356311 is about 394.4146883120.

The spelling of 61356311 in words is "sixty-one million, three hundred fifty-six thousand, three hundred eleven".