71061801 has 4 divisors (see below), whose sum is σ = 94749072. Its totient is φ = 47374532.

The previous prime is 71061799. The next prime is 71061821. The reversal of 71061801 is 10816017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71061801 - 2¹ = 71061799 is a prime.

It is a super-2 number, since 2×71061801² = 10099559122727202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71061821) 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 3 ways as a sum of consecutive naturals, for example, 11843631 + ... + 11843636.

It is an arithmetic number, because the mean of its divisors is an integer number (23687268).

Almost surely, 2^71061801 is an apocalyptic number.

It is an amenable number.

71061801 is a deficient number, since it is larger than the sum of its proper divisors (23687271).

71061801 is a wasteful number, since it uses less digits than its factorization.

71061801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23687270.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 71061801 is about 8429.8161901669. The cubic root of 71061801 is about 414.2018840800.

Adding to 71061801 its reverse (10816017), we get a palindrome (81877818).

The spelling of 71061801 in words is "seventy-one million, sixty-one thousand, eight hundred one".