71352189 has 6 divisors (see below), whose sum is σ = 103064286. Its totient is φ = 47568120.

The previous prime is 71352167. The next prime is 71352199. The reversal of 71352189 is 98125317.

It can be written as a sum of positive squares in only one way, i.e., 51236964 + 20115225 = 7158^2 + 4485^2 .

It is not a de Polignac number, because 71352189 - 2⁸ = 71351933 is a prime.

It is a super-2 number, since 2×71352189² = 10182269750183442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71352139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3964002 + ... + 3964019.

It is an arithmetic number, because the mean of its divisors is an integer number (17177381).

Almost surely, 2^71352189 is an apocalyptic number.

It is an amenable number.

71352189 is a deficient number, since it is larger than the sum of its proper divisors (31712097).

71352189 is a wasteful number, since it uses less digits than its factorization.

71352189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7928027 (or 7928024 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 71352189 is about 8447.0224931629. The cubic root of 71352189 is about 414.7653175468.

The spelling of 71352189 in words is "seventy-one million, three hundred fifty-two thousand, one hundred eighty-nine".