7271491252 has 12 divisors (see below), whose sum is σ = 12726645120. Its totient is φ = 3635306936.

The previous prime is 7271491189. The next prime is 7271491301. The reversal of 7271491252 is 2521941727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70852 + ... + 139867.

It is an arithmetic number, because the mean of its divisors is an integer number (1060553760).

Almost surely, 2^7271491252 is an apocalyptic number.

It is an amenable number.

7271491252 is a deficient number, since it is larger than the sum of its proper divisors (5455153868).

7271491252 is a wasteful number, since it uses less digits than its factorization.

7271491252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219350 (or 219348 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 7271491252 is about 85273.0394204405. The cubic root of 7271491252 is about 1937.3488472134.

The spelling of 7271491252 in words is "seven billion, two hundred seventy-one million, four hundred ninety-one thousand, two hundred fifty-two".