71032401 has 24 divisors (see below), whose sum is σ = 113836320. Its totient is φ = 42316800.

The previous prime is 71032399. The next prime is 71032411. The reversal of 71032401 is 10423017.

It is not a de Polignac number, because 71032401 - 2¹ = 71032399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71032411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240 + ... + 11921.

It is an arithmetic number, because the mean of its divisors is an integer number (4743180).

Almost surely, 2^71032401 is an apocalyptic number.

It is an amenable number.

71032401 is a deficient number, since it is larger than the sum of its proper divisors (42803919).

71032401 is a wasteful number, since it uses less digits than its factorization.

71032401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12237 (or 12234 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 71032401 is about 8428.0721995009. The cubic root of 71032401 is about 414.1447543939.

Adding to 71032401 its reverse (10423017), we get a palindrome (81455418).

The spelling of 71032401 in words is "seventy-one million, thirty-two thousand, four hundred one".