71401266 has 24 divisors (see below), whose sum is σ = 154995984. Its totient is φ = 23755320.

The previous prime is 71401193. The next prime is 71401283. The reversal of 71401266 is 66210417.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6805 + ... + 13751.

It is an arithmetic number, because the mean of its divisors is an integer number (6458166).

Almost surely, 2^71401266 is an apocalyptic number.

71401266 is an abundant number, since it is smaller than the sum of its proper divisors (83594718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71401266 is a wasteful number, since it uses less digits than its factorization.

71401266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526 (or 7523 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 71401266 is about 8449.9269819330. The cubic root of 71401266 is about 414.8603894833.

The spelling of 71401266 in words is "seventy-one million, four hundred one thousand, two hundred sixty-six".