71255132 has 18 divisors (see below), whose sum is σ = 135027648. Its totient is φ = 32886672.

The previous prime is 71255099. The next prime is 71255159. The reversal of 71255132 is 23155217.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 52028 + ... + 53379.

It is an arithmetic number, because the mean of its divisors is an integer number (7501536).

Almost surely, 2^71255132 is an apocalyptic number.

It is an amenable number.

71255132 is a deficient number, since it is larger than the sum of its proper divisors (63772516).

71255132 is a wasteful number, since it uses less digits than its factorization.

71255132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105437 (or 105422 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 71255132 is about 8441.2754960373. The cubic root of 71255132 is about 414.5771703457.

The spelling of 71255132 in words is "seventy-one million, two hundred fifty-five thousand, one hundred thirty-two".