71512041 has 8 divisors (see below), whose sum is σ = 96655840. Its totient is φ = 47021472.

The previous prime is 71512033. The next prime is 71512079. The reversal of 71512041 is 14021517.

It is a happy number.

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

It is not a de Polignac number, because 71512041 - 2³ = 71512033 is a prime.

It is a super-2 number, since 2×71512041² = 10227944015971362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71511999 and 71512017.

It is not an unprimeable number, because it can be changed into a prime (71512031) 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, 163051 + ... + 163488.

It is an arithmetic number, because the mean of its divisors is an integer number (12081980).

Almost surely, 2^71512041 is an apocalyptic number.

It is an amenable number.

71512041 is a deficient number, since it is larger than the sum of its proper divisors (25143799).

71512041 is a wasteful number, since it uses less digits than its factorization.

71512041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326615.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 71512041 is about 8456.4792319263. The cubic root of 71512041 is about 415.0748227213.

Adding to 71512041 its reverse (14021517), we get a palindrome (85533558).

The spelling of 71512041 in words is "seventy-one million, five hundred twelve thousand, forty-one".