71533401 has 8 divisors (see below), whose sum is σ = 98666880. Its totient is φ = 46044432.

The previous prime is 71533393. The next prime is 71533447. The reversal of 71533401 is 10433517.

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

It is not a de Polignac number, because 71533401 - 2³ = 71533393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71533001) 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 7 ways as a sum of consecutive naturals, for example, 411025 + ... + 411198.

It is an arithmetic number, because the mean of its divisors is an integer number (12333360).

Almost surely, 2^71533401 is an apocalyptic number.

It is an amenable number.

71533401 is a deficient number, since it is larger than the sum of its proper divisors (27133479).

71533401 is a wasteful number, since it uses less digits than its factorization.

71533401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822255.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 71533401 is about 8457.7420745729. The cubic root of 71533401 is about 415.1161449728.

Adding to 71533401 its reverse (10433517), we get a palindrome (81966918).

The spelling of 71533401 in words is "seventy-one million, five hundred thirty-three thousand, four hundred one".