71150427 has 32 divisors (see below), whose sum is σ = 110376000. Its totient is φ = 45239040.

The previous prime is 71150419. The next prime is 71150467. The reversal of 71150427 is 72405117.

It is not a de Polignac number, because 71150427 - 2³ = 71150419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 71150427.

It is not an unprimeable number, because it can be changed into a prime (71150467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69177 + ... + 70197.

It is an arithmetic number, because the mean of its divisors is an integer number (3449250).

Almost surely, 2^71150427 is an apocalyptic number.

71150427 is a deficient number, since it is larger than the sum of its proper divisors (39225573).

71150427 is a wasteful number, since it uses less digits than its factorization.

71150427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148 (or 1142 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 71150427 is about 8435.0712504400. The cubic root of 71150427 is about 414.3740056486.

The spelling of 71150427 in words is "seventy-one million, one hundred fifty thousand, four hundred twenty-seven".