71613201 has 16 divisors (see below), whose sum is σ = 104372928. Its totient is φ = 43315200.

The previous prime is 71613149. The next prime is 71613221. The reversal of 71613201 is 10231617.

It is not a de Polignac number, because 71613201 - 2⁶ = 71613137 is a prime.

It is a Curzon number.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (71613221) 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 15 ways as a sum of consecutive naturals, for example, 17161 + ... + 20921.

It is an arithmetic number, because the mean of its divisors is an integer number (6523308).

Almost surely, 2^71613201 is an apocalyptic number.

It is an amenable number.

71613201 is a deficient number, since it is larger than the sum of its proper divisors (32759727).

71613201 is a wasteful number, since it uses less digits than its factorization.

71613201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 71613201 is about 8462.4583307689. The cubic root of 71613201 is about 415.2704503154.

Adding to 71613201 its reverse (10231617), we get a palindrome (81844818).

The spelling of 71613201 in words is "seventy-one million, six hundred thirteen thousand, two hundred one".