45781061 has 2 divisors, whose sum is σ = 45781062. Its totient is φ = 45781060.

The previous prime is 45781039. The next prime is 45781081. The reversal of 45781061 is 16018754.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 19412836 = 5135^2 + 4406^2 .

It is a cyclic number.

It is not a de Polignac number, because 45781061 - 2⁶ = 45780997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45781031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22890530 + 22890531.

It is an arithmetic number, because the mean of its divisors is an integer number (22890531).

Almost surely, 2^45781061 is an apocalyptic number.

It is an amenable number.

45781061 is a deficient number, since it is larger than the sum of its proper divisors (1).

45781061 is an equidigital number, since it uses as much as digits as its factorization.

45781061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 45781061 is about 6766.1703348349. The cubic root of 45781061 is about 357.7354271085.

It can be divided in two parts, 457 and 81061, that added together give a palindrome (81518).

The spelling of 45781061 in words is "forty-five million, seven hundred eighty-one thousand, sixty-one".