61516343 has 8 divisors (see below), whose sum is σ = 70771200. Its totient is φ = 52378200.

The previous prime is 61516339. The next prime is 61516349. The reversal of 61516343 is 34361516.

It is a happy number.

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

It is not a de Polignac number, because 61516343 - 2² = 61516339 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 (61516349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28043 + ... + 30156.

It is an arithmetic number, because the mean of its divisors is an integer number (8846400).

Almost surely, 2^61516343 is an apocalyptic number.

61516343 is a deficient number, since it is larger than the sum of its proper divisors (9254857).

61516343 is a wasteful number, since it uses less digits than its factorization.

61516343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58357.

The product of its digits is 6480, while the sum is 29.

The square root of 61516343 is about 7843.2354930857. The cubic root of 61516343 is about 394.7573000351.

Adding to 61516343 its reverse (34361516), we get a palindrome (95877859).

The spelling of 61516343 in words is "sixty-one million, five hundred sixteen thousand, three hundred forty-three".