61316351 has 4 divisors (see below), whose sum is σ = 61481112. Its totient is φ = 61151592.

The previous prime is 61316347. The next prime is 61316369. The reversal of 61316351 is 15361316.

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

It is a cyclic number.

It is not a de Polignac number, because 61316351 - 2² = 61316347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61316351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61316051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81821 + ... + 82566.

It is an arithmetic number, because the mean of its divisors is an integer number (15370278).

Almost surely, 2^61316351 is an apocalyptic number.

61316351 is a deficient number, since it is larger than the sum of its proper divisors (164761).

61316351 is a wasteful number, since it uses less digits than its factorization.

61316351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164760.

The product of its digits is 1620, while the sum is 26.

The square root of 61316351 is about 7830.4757837567. The cubic root of 61316351 is about 394.3290452136.

Adding to 61316351 its reverse (15361316), we get a palindrome (76677667).

The spelling of 61316351 in words is "sixty-one million, three hundred sixteen thousand, three hundred fifty-one".