71124469 has 8 divisors (see below), whose sum is σ = 76663832. Its totient is φ = 65594880.

The previous prime is 71124461. The next prime is 71124479. The reversal of 71124469 is 96442117.

It can be written as a sum of positive squares in 4 ways, for example, as 15800625 + 55323844 = 3975^2 + 7438^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71124469 - 2³ = 71124461 is a prime.

It is a super-2 number, since 2×71124469² = 10117380181063922, 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 (71124461) 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, 21229 + ... + 24349.

It is an arithmetic number, because the mean of its divisors is an integer number (9582979).

Almost surely, 2^71124469 is an apocalyptic number.

It is an amenable number.

71124469 is a deficient number, since it is larger than the sum of its proper divisors (5539363).

71124469 is a wasteful number, since it uses less digits than its factorization.

71124469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887.

The product of its digits is 12096, while the sum is 34.

The square root of 71124469 is about 8433.5324153050. The cubic root of 71124469 is about 414.3236071280.

The spelling of 71124469 in words is "seventy-one million, one hundred twenty-four thousand, four hundred sixty-nine".