71453369 has 12 divisors (see below), whose sum is σ = 77894316. Its totient is φ = 65512512.

The previous prime is 71453339. The next prime is 71453377. The reversal of 71453369 is 96335417.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 19035769 + 52417600 = 4363^2 + 7240^2 .

It is a de Polignac number, because none of the positive numbers 2^k-71453369 is a prime.

It is a super-2 number, since 2×71453369² = 10211167882900322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71453339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25187 + ... + 27879.

It is an arithmetic number, because the mean of its divisors is an integer number (6491193).

Almost surely, 2^71453369 is an apocalyptic number.

It is an amenable number.

71453369 is a deficient number, since it is larger than the sum of its proper divisors (6440947).

71453369 is a wasteful number, since it uses less digits than its factorization.

71453369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2863 counting only the distinct ones).

The product of its digits is 68040, while the sum is 38.

The square root of 71453369 is about 8453.0094640903. The cubic root of 71453369 is about 414.9612757209.

The spelling of 71453369 in words is "seventy-one million, four hundred fifty-three thousand, three hundred sixty-nine".