61261303 has 4 divisors (see below), whose sum is σ = 61333480. Its totient is φ = 61189128.

The previous prime is 61261297. The next prime is 61261309. The reversal of 61261303 is 30316216.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61261297) and next prime (61261309).

It is a cyclic number.

It is not a de Polignac number, because 61261303 - 2⁵ = 61261271 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 (61261309) 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 3 ways as a sum of consecutive naturals, for example, 34800 + ... + 36517.

It is an arithmetic number, because the mean of its divisors is an integer number (15333370).

Almost surely, 2^61261303 is an apocalyptic number.

61261303 is a deficient number, since it is larger than the sum of its proper divisors (72177).

61261303 is an equidigital number, since it uses as much as digits as its factorization.

61261303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72176.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 61261303 is about 7826.9600101189. The cubic root of 61261303 is about 394.2110042444.

Adding to 61261303 its reverse (30316216), we get a palindrome (91577519).

The spelling of 61261303 in words is "sixty-one million, two hundred sixty-one thousand, three hundred three".