61286741 has 2 divisors, whose sum is σ = 61286742. Its totient is φ = 61286740.

The previous prime is 61286737. The next prime is 61286749. The reversal of 61286741 is 14768216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39627025 + 21659716 = 6295^2 + 4654^2 .

It is a cyclic number.

It is not a de Polignac number, because 61286741 - 2² = 61286737 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61286749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30643370 + 30643371.

It is an arithmetic number, because the mean of its divisors is an integer number (30643371).

Almost surely, 2^61286741 is an apocalyptic number.

It is an amenable number.

61286741 is a deficient number, since it is larger than the sum of its proper divisors (1).

61286741 is an equidigital number, since it uses as much as digits as its factorization.

61286741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 61286741 is about 7828.5848657340. The cubic root of 61286741 is about 394.2655604453.

The spelling of 61286741 in words is "sixty-one million, two hundred eighty-six thousand, seven hundred forty-one".