61430441 has 2 divisors, whose sum is σ = 61430442. Its totient is φ = 61430440.

The previous prime is 61430429. The next prime is 61430443. The reversal of 61430441 is 14403416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47554816 + 13875625 = 6896^2 + 3725^2 .

It is a cyclic number.

It is not a de Polignac number, because 61430441 - 2¹⁴ = 61414057 is a prime.

It is a Sophie Germain prime.

Together with 61430443, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (61430443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30715220 + 30715221.

It is an arithmetic number, because the mean of its divisors is an integer number (30715221).

Almost surely, 2^61430441 is an apocalyptic number.

It is an amenable number.

61430441 is a deficient number, since it is larger than the sum of its proper divisors (1).

61430441 is an equidigital number, since it uses as much as digits as its factorization.

61430441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 61430441 is about 7837.7573960923. The cubic root of 61430441 is about 394.5734668374.

Adding to 61430441 its reverse (14403416), we get a palindrome (75833857).

The spelling of 61430441 in words is "sixty-one million, four hundred thirty thousand, four hundred forty-one".