71450051 has 4 divisors (see below), whose sum is σ = 75210600. Its totient is φ = 67689504.

The previous prime is 71450039. The next prime is 71450053. The reversal of 71450051 is 15005417.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71450051 - 2¹⁴ = 71433667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71449999 and 71450026.

It is not an unprimeable number, because it can be changed into a prime (71450053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1880246 + ... + 1880283.

It is an arithmetic number, because the mean of its divisors is an integer number (18802650).

Almost surely, 2^71450051 is an apocalyptic number.

71450051 is a deficient number, since it is larger than the sum of its proper divisors (3760549).

71450051 is a wasteful number, since it uses less digits than its factorization.

71450051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760548.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 71450051 is about 8452.8132003493. The cubic root of 71450051 is about 414.9548525909.

Adding to 71450051 its reverse (15005417), we get a palindrome (86455468).

The spelling of 71450051 in words is "seventy-one million, four hundred fifty thousand, fifty-one".