61304351 has 2 divisors, whose sum is σ = 61304352. Its totient is φ = 61304350.

The previous prime is 61304333. The next prime is 61304359. The reversal of 61304351 is 15340316.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61304351 - 2²² = 57110047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61304359) 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 as a sum of consecutive naturals, namely, 30652175 + 30652176.

It is an arithmetic number, because the mean of its divisors is an integer number (30652176).

Almost surely, 2^61304351 is an apocalyptic number.

61304351 is a deficient number, since it is larger than the sum of its proper divisors (1).

61304351 is an equidigital number, since it uses as much as digits as its factorization.

61304351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 61304351 is about 7829.7095092985. The cubic root of 61304351 is about 394.3033193010.

Adding to 61304351 its reverse (15340316), we get a palindrome (76644667).

The spelling of 61304351 in words is "sixty-one million, three hundred four thousand, three hundred fifty-one".