71451007 has 2 divisors, whose sum is σ = 71451008. Its totient is φ = 71451006.

The previous prime is 71450989. The next prime is 71451053. The reversal of 71451007 is 70015417.

It is a weak prime.

It is an emirp because it is prime and its reverse (70015417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71451007 - 2¹⁹ = 70926719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71451067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35725503 + 35725504.

It is an arithmetic number, because the mean of its divisors is an integer number (35725504).

Almost surely, 2^71451007 is an apocalyptic number.

71451007 is a deficient number, since it is larger than the sum of its proper divisors (1).

71451007 is an equidigital number, since it uses as much as digits as its factorization.

71451007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 71451007 is about 8452.8697493810. The cubic root of 71451007 is about 414.9567032781.

The spelling of 71451007 in words is "seventy-one million, four hundred fifty-one thousand, seven".