71423147 has 8 divisors (see below), whose sum is σ = 75264000. Its totient is φ = 67590504.

The previous prime is 71423117. The next prime is 71423153. The reversal of 71423147 is 74132417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71423147 - 2⁶ = 71423083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71423117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25238 + ... + 27924.

It is an arithmetic number, because the mean of its divisors is an integer number (9408000).

Almost surely, 2^71423147 is an apocalyptic number.

71423147 is a deficient number, since it is larger than the sum of its proper divisors (3840853).

71423147 is a wasteful number, since it uses less digits than its factorization.

71423147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105.

The product of its digits is 4704, while the sum is 29.

The square root of 71423147 is about 8451.2216276702. The cubic root of 71423147 is about 414.9027633028.

The spelling of 71423147 in words is "seventy-one million, four hundred twenty-three thousand, one hundred forty-seven".