61242361 has 2 divisors, whose sum is σ = 61242362. Its totient is φ = 61242360.

The previous prime is 61242343. The next prime is 61242367. The reversal of 61242361 is 16324216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46840336 + 14402025 = 6844^2 + 3795^2 .

It is a cyclic number.

It is not a de Polignac number, because 61242361 - 2⁹ = 61241849 is a prime.

It is not a weakly prime, because it can be changed into another prime (61242367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30621180 + 30621181.

It is an arithmetic number, because the mean of its divisors is an integer number (30621181).

Almost surely, 2^61242361 is an apocalyptic number.

It is an amenable number.

61242361 is a deficient number, since it is larger than the sum of its proper divisors (1).

61242361 is an equidigital number, since it uses as much as digits as its factorization.

61242361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 61242361 is about 7825.7498682235. The cubic root of 61242361 is about 394.1703700310.

Adding to 61242361 its reverse (16324216), we get a palindrome (77566577).

The spelling of 61242361 in words is "sixty-one million, two hundred forty-two thousand, three hundred sixty-one".