61424351 has 2 divisors, whose sum is σ = 61424352. Its totient is φ = 61424350.

The previous prime is 61424323. The next prime is 61424353. The reversal of 61424351 is 15342416.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61424351 is a prime.

It is a Sophie Germain prime.

Together with 61424353, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61424351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61424353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30712175 + 30712176.

It is an arithmetic number, because the mean of its divisors is an integer number (30712176).

Almost surely, 2^61424351 is an apocalyptic number.

61424351 is a deficient number, since it is larger than the sum of its proper divisors (1).

61424351 is an equidigital number, since it uses as much as digits as its factorization.

61424351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 61424351 is about 7837.3688824758. The cubic root of 61424351 is about 394.5604275267.

Adding to 61424351 its reverse (15342416), we get a palindrome (76766767).

The spelling of 61424351 in words is "sixty-one million, four hundred twenty-four thousand, three hundred fifty-one".