61330743 has 16 divisors (see below), whose sum is σ = 90981600. Its totient is φ = 40832640.

The previous prime is 61330729. The next prime is 61330751. The reversal of 61330743 is 34703316.

It is a happy number.

61330743 is a `hidden beast` number, since 613 + 3 + 0 + 7 + 43 = 666.

It is not a de Polignac number, because 61330743 - 2⁹ = 61330231 is a prime.

It is a super-2 number, since 2×61330743² = 7522920073864098, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61330343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35913 + ... + 37581.

It is an arithmetic number, because the mean of its divisors is an integer number (5686350).

Almost surely, 2^61330743 is an apocalyptic number.

61330743 is a deficient number, since it is larger than the sum of its proper divisors (29650857).

61330743 is a wasteful number, since it uses less digits than its factorization.

61330743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039 (or 3033 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 61330743 is about 7831.3947033718. The cubic root of 61330743 is about 394.3598947318.

The spelling of 61330743 in words is "sixty-one million, three hundred thirty thousand, seven hundred forty-three".