71483561 has 4 divisors (see below), whose sum is σ = 71551872. Its totient is φ = 71415252.

The previous prime is 71483549. The next prime is 71483603. The reversal of 71483561 is 16538417.

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 a de Polignac number, because none of the positive numbers 2^k-71483561 is a prime.

It is a super-4 number, since 4×71483561⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71483261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32561 + ... + 34686.

It is an arithmetic number, because the mean of its divisors is an integer number (17887968).

Almost surely, 2^71483561 is an apocalyptic number.

It is an amenable number.

71483561 is a deficient number, since it is larger than the sum of its proper divisors (68311).

71483561 is a wasteful number, since it uses less digits than its factorization.

71483561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68310.

The product of its digits is 20160, while the sum is 35.

The square root of 71483561 is about 8454.7951483167. The cubic root of 71483561 is about 415.0197135843.

The spelling of 71483561 in words is "seventy-one million, four hundred eighty-three thousand, five hundred sixty-one".