71742265 has 16 divisors (see below), whose sum is σ = 98830080. Its totient is φ = 48974400.

The previous prime is 71742263. The next prime is 71742269. The reversal of 71742265 is 56224717.

It is not a de Polignac number, because 71742265 - 2¹ = 71742263 is a prime.

It is a super-3 number, since 3×71742265³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71742265.

It is not an unprimeable number, because it can be changed into a prime (71742263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3540 + ... + 12490.

It is an arithmetic number, because the mean of its divisors is an integer number (6176880).

Almost surely, 2^71742265 is an apocalyptic number.

It is an amenable number.

71742265 is a deficient number, since it is larger than the sum of its proper divisors (27087815).

71742265 is a wasteful number, since it uses less digits than its factorization.

71742265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9192.

The product of its digits is 23520, while the sum is 34.

The square root of 71742265 is about 8470.0805781291. The cubic root of 71742265 is about 415.5197725958.

Subtracting from 71742265 its sum of digits (34), we obtain a triangular number (71742231 = T₁₁₉₇₈).

The spelling of 71742265 in words is "seventy-one million, seven hundred forty-two thousand, two hundred sixty-five".