71024145 has 16 divisors (see below), whose sum is σ = 113762880. Its totient is φ = 37838144.

The previous prime is 71024137. The next prime is 71024189. The reversal of 71024145 is 54142017.

It is a cyclic number.

It is not a de Polignac number, because 71024145 - 2³ = 71024137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15811 + ... + 19799.

It is an arithmetic number, because the mean of its divisors is an integer number (7110180).

Almost surely, 2^71024145 is an apocalyptic number.

It is an amenable number.

71024145 is a deficient number, since it is larger than the sum of its proper divisors (42738735).

71024145 is a wasteful number, since it uses less digits than its factorization.

71024145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 71024145 is about 8427.5823935456. The cubic root of 71024145 is about 414.1287086105.

The spelling of 71024145 in words is "seventy-one million, twenty-four thousand, one hundred forty-five".