61417451 has 2 divisors, whose sum is σ = 61417452. Its totient is φ = 61417450.

The previous prime is 61417399. The next prime is 61417453. The reversal of 61417451 is 15471416.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61417451 is a prime.

It is a Sophie Germain prime.

Together with 61417453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61417453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30708725 + 30708726.

It is an arithmetic number, because the mean of its divisors is an integer number (30708726).

Almost surely, 2^61417451 is an apocalyptic number.

61417451 is a deficient number, since it is larger than the sum of its proper divisors (1).

61417451 is an equidigital number, since it uses as much as digits as its factorization.

61417451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 61417451 is about 7836.9286713610. The cubic root of 61417451 is about 394.5456528819.

Adding to 61417451 its reverse (15471416), we get a palindrome (76888867).

The spelling of 61417451 in words is "sixty-one million, four hundred seventeen thousand, four hundred fifty-one".