71285901 has 32 divisors (see below), whose sum is σ = 102580992. Its totient is φ = 43929600.

The previous prime is 71285899. The next prime is 71285909. The reversal of 71285901 is 10958217.

It is not a de Polignac number, because 71285901 - 2¹ = 71285899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71285909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369261 + ... + 369453.

It is an arithmetic number, because the mean of its divisors is an integer number (3205656).

Almost surely, 2^71285901 is an apocalyptic number.

It is an amenable number.

71285901 is a deficient number, since it is larger than the sum of its proper divisors (31295091).

71285901 is a wasteful number, since it uses less digits than its factorization.

71285901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 71285901 is about 8443.0978319572. The cubic root of 71285901 is about 414.6368352379.

The spelling of 71285901 in words is "seventy-one million, two hundred eighty-five thousand, nine hundred one".