61212293 has 2 divisors, whose sum is σ = 61212294. Its totient is φ = 61212292.

The previous prime is 61212287. The next prime is 61212299. The reversal of 61212293 is 39221216.

It is a balanced prime because it is at equal distance from previous prime (61212287) and next prime (61212299).

It can be written as a sum of positive squares in only one way, i.e., 38725729 + 22486564 = 6223^2 + 4742^2 .

It is a cyclic number.

It is not a de Polignac number, because 61212293 - 2¹² = 61208197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61212299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30606146 + 30606147.

It is an arithmetic number, because the mean of its divisors is an integer number (30606147).

Almost surely, 2^61212293 is an apocalyptic number.

It is an amenable number.

61212293 is a deficient number, since it is larger than the sum of its proper divisors (1).

61212293 is an equidigital number, since it uses as much as digits as its factorization.

61212293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 61212293 is about 7823.8285385098. The cubic root of 61212293 is about 394.1058512096.

The spelling of 61212293 in words is "sixty-one million, two hundred twelve thousand, two hundred ninety-three".