61142201 has 2 divisors, whose sum is σ = 61142202. Its totient is φ = 61142200.

The previous prime is 61142189. The next prime is 61142203. The reversal of 61142201 is 10224116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42445225 + 18696976 = 6515^2 + 4324^2 .

It is a cyclic number.

It is not a de Polignac number, because 61142201 - 2¹⁰ = 61141177 is a prime.

Together with 61142203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61142201.

It is not a weakly prime, because it can be changed into another prime (61142203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30571100 + 30571101.

It is an arithmetic number, because the mean of its divisors is an integer number (30571101).

Almost surely, 2^61142201 is an apocalyptic number.

It is an amenable number.

61142201 is a deficient number, since it is larger than the sum of its proper divisors (1).

61142201 is an equidigital number, since it uses as much as digits as its factorization.

61142201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 61142201 is about 7819.3478628336. The cubic root of 61142201 is about 393.9553682684.

Adding to 61142201 its reverse (10224116), we get a palindrome (71366317).

The spelling of 61142201 in words is "sixty-one million, one hundred forty-two thousand, two hundred one".