61042783 has 2 divisors, whose sum is σ = 61042784. Its totient is φ = 61042782.

The previous prime is 61042781. The next prime is 61042811. The reversal of 61042783 is 38724016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61042783 - 2¹ = 61042781 is a prime.

Together with 61042781, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61042781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30521391 + 30521392.

It is an arithmetic number, because the mean of its divisors is an integer number (30521392).

Almost surely, 2^61042783 is an apocalyptic number.

61042783 is a deficient number, since it is larger than the sum of its proper divisors (1).

61042783 is an equidigital number, since it uses as much as digits as its factorization.

61042783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 61042783 is about 7812.9880967527. The cubic root of 61042783 is about 393.7417269447.

Adding to 61042783 its reverse (38724016), we get a palindrome (99766799).

The spelling of 61042783 in words is "sixty-one million, forty-two thousand, seven hundred eighty-three".