51146071 has 2 divisors, whose sum is σ = 51146072. Its totient is φ = 51146070.

The previous prime is 51146059. The next prime is 51146077. The reversal of 51146071 is 17064115.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51146071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51146077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25573035 + 25573036.

It is an arithmetic number, because the mean of its divisors is an integer number (25573036).

Almost surely, 2^51146071 is an apocalyptic number.

51146071 is a deficient number, since it is larger than the sum of its proper divisors (1).

51146071 is an equidigital number, since it uses as much as digits as its factorization.

51146071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 51146071 is about 7151.6481317246. The cubic root of 51146071 is about 371.1966878444.

The spelling of 51146071 in words is "fifty-one million, one hundred forty-six thousand, seventy-one".