71540995 has 4 divisors (see below), whose sum is σ = 85849200. Its totient is φ = 57232792.

The previous prime is 71540993. The next prime is 71541007. The reversal of 71540995 is 59904517.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71540995 - 2¹ = 71540993 is a prime.

It is a super-2 number, since 2×71540995² = 10236227931180050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (71540993) 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, 7154095 + ... + 7154104.

It is an arithmetic number, because the mean of its divisors is an integer number (21462300).

Almost surely, 2^71540995 is an apocalyptic number.

71540995 is a deficient number, since it is larger than the sum of its proper divisors (14308205).

71540995 is a wasteful number, since it uses less digits than its factorization.

71540995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14308204.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 71540995 is about 8458.1910004445. The cubic root of 71540995 is about 415.1308340570.

The spelling of 71540995 in words is "seventy-one million, five hundred forty thousand, nine hundred ninety-five".