71491103 has 8 divisors (see below), whose sum is σ = 76084272. Its totient is φ = 66941056.

The previous prime is 71491097. The next prime is 71491111. The reversal of 71491103 is 30119417.

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 71491103 - 2¹⁰ = 71490079 is a prime.

It is a super-2 number, since 2×71491103² = 10221955616313218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71491703) 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, 7325 + ... + 14022.

It is an arithmetic number, because the mean of its divisors is an integer number (9510534).

Almost surely, 2^71491103 is an apocalyptic number.

71491103 is a deficient number, since it is larger than the sum of its proper divisors (4593169).

71491103 is a wasteful number, since it uses less digits than its factorization.

71491103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21561.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 71491103 is about 8455.2411556383. The cubic root of 71491103 is about 415.0343088682.

The spelling of 71491103 in words is "seventy-one million, four hundred ninety-one thousand, one hundred three".