71233445 has 8 divisors (see below), whose sum is σ = 86005536. Its totient is φ = 56636496.

The previous prime is 71233439. The next prime is 71233447. The reversal of 71233445 is 54433217.

It is a happy number.

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 71233445 - 2¹⁴ = 71217061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71233447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42887 + ... + 44516.

It is an arithmetic number, because the mean of its divisors is an integer number (10750692).

Almost surely, 2^71233445 is an apocalyptic number.

It is an amenable number.

71233445 is a deficient number, since it is larger than the sum of its proper divisors (14772091).

71233445 is a wasteful number, since it uses less digits than its factorization.

71233445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87571.

The product of its digits is 10080, while the sum is 29.

The square root of 71233445 is about 8439.9908175305. The cubic root of 71233445 is about 414.5351062532.

The spelling of 71233445 in words is "seventy-one million, two hundred thirty-three thousand, four hundred forty-five".