71324145 has 48 divisors (see below), whose sum is σ = 131040000. Its totient is φ = 37200384.

The previous prime is 71324117. The next prime is 71324153. The reversal of 71324145 is 54142317.

It is not a de Polignac number, because 71324145 - 2¹³ = 71315953 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56481 + ... + 57729.

It is an arithmetic number, because the mean of its divisors is an integer number (2730000).

Almost surely, 2^71324145 is an apocalyptic number.

It is an amenable number.

71324145 is a deficient number, since it is larger than the sum of its proper divisors (59715855).

71324145 is a wasteful number, since it uses less digits than its factorization.

71324145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1304 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 71324145 is about 8445.3623368095. The cubic root of 71324145 is about 414.7109711516.

The spelling of 71324145 in words is "seventy-one million, three hundred twenty-four thousand, one hundred forty-five".