71475751 has 8 divisors (see below), whose sum is σ = 73395504. Its totient is φ = 69564480.

The previous prime is 71475731. The next prime is 71475791. The reversal of 71475751 is 15757417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71475751 - 2¹³ = 71467559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71475751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71475731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17281 + ... + 21013.

It is an arithmetic number, because the mean of its divisors is an integer number (9174438).

Almost surely, 2^71475751 is an apocalyptic number.

71475751 is a deficient number, since it is larger than the sum of its proper divisors (1919753).

71475751 is a wasteful number, since it uses less digits than its factorization.

71475751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4241.

The product of its digits is 34300, while the sum is 37.

The square root of 71475751 is about 8454.3332676208. Note that the first 3 decimals coincide. The cubic root of 71475751 is about 415.0045985845.

The spelling of 71475751 in words is "seventy-one million, four hundred seventy-five thousand, seven hundred fifty-one".