71121349 has 8 divisors (see below), whose sum is σ = 76658400. Its totient is φ = 65593776.

The previous prime is 71121343. The next prime is 71121367. The reversal of 71121349 is 94312117.

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 71121349 - 2⁵ = 71121317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71121343) 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, 25002 + ... + 27700.

It is an arithmetic number, because the mean of its divisors is an integer number (9582300).

Almost surely, 2^71121349 is an apocalyptic number.

It is an amenable number.

71121349 is a deficient number, since it is larger than the sum of its proper divisors (5537051).

71121349 is a wasteful number, since it uses less digits than its factorization.

71121349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4739.

The product of its digits is 1512, while the sum is 28.

The square root of 71121349 is about 8433.3474374059. The cubic root of 71121349 is about 414.3175486947.

The spelling of 71121349 in words is "seventy-one million, one hundred twenty-one thousand, three hundred forty-nine".