61243303 has 20 divisors (see below), whose sum is σ = 69573600. Its totient is φ = 53878880.

The previous prime is 61243297. The next prime is 61243313. The reversal of 61243303 is 30334216.

It is not a de Polignac number, because 61243303 - 2⁵ = 61243271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61243313) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 688083 + ... + 688171.

It is an arithmetic number, because the mean of its divisors is an integer number (3478680).

Almost surely, 2^61243303 is an apocalyptic number.

61243303 is a deficient number, since it is larger than the sum of its proper divisors (8330297).

61243303 is an frugal number, since it uses more digits than its factorization.

61243303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 61243303 is about 7825.8100539177. The cubic root of 61243303 is about 394.1723909991.

Adding to 61243303 its reverse (30334216), we get a palindrome (91577519).

The spelling of 61243303 in words is "sixty-one million, two hundred forty-three thousand, three hundred three".