71106513 has 4 divisors (see below), whose sum is σ = 94808688. Its totient is φ = 47404340.

The previous prime is 71106509. The next prime is 71106527. The reversal of 71106513 is 31560117.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71106513 - 2² = 71106509 is a prime.

It is a super-2 number, since 2×71106513² = 10112272382038338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71106583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11851083 + ... + 11851088.

It is an arithmetic number, because the mean of its divisors is an integer number (23702172).

Almost surely, 2^71106513 is an apocalyptic number.

It is an amenable number.

71106513 is a deficient number, since it is larger than the sum of its proper divisors (23702175).

71106513 is a wasteful number, since it uses less digits than its factorization.

71106513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23702174.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 71106513 is about 8432.4677882575. The cubic root of 71106513 is about 414.2887376428.

The spelling of 71106513 in words is "seventy-one million, one hundred six thousand, five hundred thirteen".