61355317 has 8 divisors (see below), whose sum is σ = 62451200. Its totient is φ = 60264864.

The previous prime is 61355303. The next prime is 61355321. The reversal of 61355317 is 71355316.

61355317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61355317 - 2¹¹ = 61353269 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 (61355117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26284 + ... + 28522.

It is an arithmetic number, because the mean of its divisors is an integer number (7806400).

Almost surely, 2^61355317 is an apocalyptic number.

61355317 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

61355317 is a deficient number, since it is larger than the sum of its proper divisors (1095883).

61355317 is a wasteful number, since it uses less digits than its factorization.

61355317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715.

The product of its digits is 9450, while the sum is 31.

The square root of 61355317 is about 7832.9634877229. The cubic root of 61355317 is about 394.4125584017.

Subtracting 61355317 from its reverse (71355316), we obtain a palindrome (9999999).

The spelling of 61355317 in words is "sixty-one million, three hundred fifty-five thousand, three hundred seventeen".