71147252 has 12 divisors (see below), whose sum is σ = 135826656. Its totient is φ = 32339640.

The previous prime is 71147231. The next prime is 71147273. The reversal of 71147252 is 25274117.

It is an interprime number because it is at equal distance from previous prime (71147231) and next prime (71147273).

It is a super-3 number, since 3×71147252³ (a number of 25 digits) contains 333 as substring.

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, 808448 + ... + 808535.

It is an arithmetic number, because the mean of its divisors is an integer number (11318888).

Almost surely, 2^71147252 is an apocalyptic number.

It is an amenable number.

71147252 is a deficient number, since it is larger than the sum of its proper divisors (64679404).

71147252 is a wasteful number, since it uses less digits than its factorization.

71147252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616998 (or 1616996 counting only the distinct ones).

The product of its digits is 3920, while the sum is 29.

The square root of 71147252 is about 8434.8830460179. The cubic root of 71147252 is about 414.3678419140.

The spelling of 71147252 in words is "seventy-one million, one hundred forty-seven thousand, two hundred fifty-two".