61244357 has 2 divisors, whose sum is σ = 61244358. Its totient is φ = 61244356.

The previous prime is 61244327. The next prime is 61244383. The reversal of 61244357 is 75344216.

61244357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61058596 + 185761 = 7814^2 + 431^2 .

It is a cyclic number.

It is not a de Polignac number, because 61244357 - 2¹² = 61240261 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 (61244327) 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, 30622178 + 30622179.

It is an arithmetic number, because the mean of its divisors is an integer number (30622179).

Almost surely, 2^61244357 is an apocalyptic number.

It is an amenable number.

61244357 is a deficient number, since it is larger than the sum of its proper divisors (1).

61244357 is an equidigital number, since it uses as much as digits as its factorization.

61244357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 61244357 is about 7825.8773948996. The cubic root of 61244357 is about 394.1746522277.

The spelling of 61244357 in words is "sixty-one million, two hundred forty-four thousand, three hundred fifty-seven".