5156457461 has 2 divisors, whose sum is σ = 5156457462. Its totient is φ = 5156457460.

The previous prime is 5156457451. The next prime is 5156457463. The reversal of 5156457461 is 1647546515.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3982367236 + 1174090225 = 63106^2 + 34265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5156457461 is a prime.

It is a Sophie Germain prime.

Together with 5156457463, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5156457463) 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 as a sum of consecutive naturals, namely, 2578228730 + 2578228731.

It is an arithmetic number, because the mean of its divisors is an integer number (2578228731).

Almost surely, 2^5156457461 is an apocalyptic number.

It is an amenable number.

5156457461 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156457461 is an equidigital number, since it uses as much as digits as its factorization.

5156457461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 44.

The square root of 5156457461 is about 71808.4776401784. The cubic root of 5156457461 is about 1727.6289771850.

The spelling of 5156457461 in words is "five billion, one hundred fifty-six million, four hundred fifty-seven thousand, four hundred sixty-one".