71945341 has 8 divisors (see below), whose sum is σ = 78191960. Its totient is φ = 65800512.

The previous prime is 71945329. The next prime is 71945347. The reversal of 71945341 is 14354917.

It can be written as a sum of positive squares in 4 ways, for example, as 12809241 + 59136100 = 3579^2 + 7690^2 .

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 71945341 - 2⁷ = 71945213 is a prime.

It is a super-2 number, since 2×71945341² = 10352264183212562, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71945297 and 71945306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71945347) 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, 23970 + ... + 26803.

It is an arithmetic number, because the mean of its divisors is an integer number (9773995).

Almost surely, 2^71945341 is an apocalyptic number.

It is an amenable number.

71945341 is a deficient number, since it is larger than the sum of its proper divisors (6246619).

71945341 is a wasteful number, since it uses less digits than its factorization.

71945341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50895.

The product of its digits is 15120, while the sum is 34.

The square root of 71945341 is about 8482.0599502715. The cubic root of 71945341 is about 415.9114645321.

The spelling of 71945341 in words is "seventy-one million, nine hundred forty-five thousand, three hundred forty-one".