71093121 has 16 divisors (see below), whose sum is σ = 105106368. Its totient is φ = 42379200.

The previous prime is 71093119. The next prime is 71093149. The reversal of 71093121 is 12139017.

It is not a de Polignac number, because 71093121 - 2¹ = 71093119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71093091 and 71093100.

It is not an unprimeable number, because it can be changed into a prime (71093101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15646 + ... + 19671.

It is an arithmetic number, because the mean of its divisors is an integer number (6569148).

Almost surely, 2^71093121 is an apocalyptic number.

It is an amenable number.

71093121 is a deficient number, since it is larger than the sum of its proper divisors (34013247).

71093121 is a wasteful number, since it uses less digits than its factorization.

71093121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35392.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 71093121 is about 8431.6736772719. The cubic root of 71093121 is about 414.2627273526.

The spelling of 71093121 in words is "seventy-one million, ninety-three thousand, one hundred twenty-one".