71346445 has 4 divisors (see below), whose sum is σ = 85615740. Its totient is φ = 57077152.

The previous prime is 71346439. The next prime is 71346461. The reversal of 71346445 is 54464317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54464317 = 19 ⋅2866543.

It can be written as a sum of positive squares in 2 ways, for example, as 13920361 + 57426084 = 3731^2 + 7578^2 .

It is a cyclic number.

It is not a de Polignac number, because 71346445 - 2⁵ = 71346413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71346445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7134640 + ... + 7134649.

It is an arithmetic number, because the mean of its divisors is an integer number (21403935).

Almost surely, 2^71346445 is an apocalyptic number.

It is an amenable number.

71346445 is a deficient number, since it is larger than the sum of its proper divisors (14269295).

71346445 is a wasteful number, since it uses less digits than its factorization.

71346445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14269294.

The product of its digits is 40320, while the sum is 34.

The square root of 71346445 is about 8446.6824848576. The cubic root of 71346445 is about 414.7541874238.

The spelling of 71346445 in words is "seventy-one million, three hundred forty-six thousand, four hundred forty-five".