71113001 has 8 divisors (see below), whose sum is σ = 73573320. Its totient is φ = 68681088.

The previous prime is 71112947. The next prime is 71113027. The reversal of 71113001 is 10031117.

It can be written as a sum of positive squares in 4 ways, for example, as 8323225 + 62789776 = 2885^2 + 7924^2 .

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 71113001 - 2¹⁴ = 71096617 is a prime.

It is a super-2 number, since 2×71113001² = 10114117822452002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71113061) 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, 1946 + ... + 12083.

It is an arithmetic number, because the mean of its divisors is an integer number (9196665).

Almost surely, 2^71113001 is an apocalyptic number.

It is an amenable number.

71113001 is a deficient number, since it is larger than the sum of its proper divisors (2460319).

71113001 is a wasteful number, since it uses less digits than its factorization.

71113001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14203.

The product of its (nonzero) digits is 21, while the sum is 14.

The square root of 71113001 is about 8432.8524829977. The cubic root of 71113001 is about 414.3013376306.

Adding to 71113001 its reverse (10031117), we get a palindrome (81144118).

The spelling of 71113001 in words is "seventy-one million, one hundred thirteen thousand, one".