71326145 has 8 divisors (see below), whose sum is σ = 93372480. Its totient is φ = 51873520.

The previous prime is 71326139. The next prime is 71326147. The reversal of 71326145 is 54162317.

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

It is not a de Polignac number, because 71326145 - 2⁶ = 71326081 is a prime.

It is a super-2 number, since 2×71326145² = 10174837921122050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71326147) 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, 648365 + ... + 648474.

It is an arithmetic number, because the mean of its divisors is an integer number (11671560).

Almost surely, 2^71326145 is an apocalyptic number.

It is an amenable number.

71326145 is a deficient number, since it is larger than the sum of its proper divisors (22046335).

71326145 is a wasteful number, since it uses less digits than its factorization.

71326145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296855.

The product of its digits is 5040, while the sum is 29.

The square root of 71326145 is about 8445.4807441613. The cubic root of 71326145 is about 414.7148474181.

The spelling of 71326145 in words is "seventy-one million, three hundred twenty-six thousand, one hundred forty-five".