71241955 has 4 divisors (see below), whose sum is σ = 85490352. Its totient is φ = 56993560.

The previous prime is 71241953. The next prime is 71241959. The reversal of 71241955 is 55914217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55914217 = 307 ⋅182131.

It is not a de Polignac number, because 71241955 - 2¹ = 71241953 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 71241955.

It is not an unprimeable number, because it can be changed into a prime (71241953) 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 3 ways as a sum of consecutive naturals, for example, 7124191 + ... + 7124200.

It is an arithmetic number, because the mean of its divisors is an integer number (21372588).

Almost surely, 2^71241955 is an apocalyptic number.

71241955 is a deficient number, since it is larger than the sum of its proper divisors (14248397).

71241955 is a wasteful number, since it uses less digits than its factorization.

71241955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14248396.

The product of its digits is 12600, while the sum is 34.

The square root of 71241955 is about 8440.4949499422. The cubic root of 71241955 is about 414.5516132619.

The spelling of 71241955 in words is "seventy-one million, two hundred forty-one thousand, nine hundred fifty-five".