61163783 has 2 divisors, whose sum is σ = 61163784. Its totient is φ = 61163782.

The previous prime is 61163777. The next prime is 61163801. The reversal of 61163783 is 38736116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61163783 - 2¹² = 61159687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61163723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30581891 + 30581892.

It is an arithmetic number, because the mean of its divisors is an integer number (30581892).

Almost surely, 2^61163783 is an apocalyptic number.

61163783 is a deficient number, since it is larger than the sum of its proper divisors (1).

61163783 is an equidigital number, since it uses as much as digits as its factorization.

61163783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 61163783 is about 7820.7277794333. The cubic root of 61163783 is about 394.0017156599.

Adding to 61163783 its reverse (38736116), we get a palindrome (99899899).

The spelling of 61163783 in words is "sixty-one million, one hundred sixty-three thousand, seven hundred eighty-three".