71254156 has 12 divisors (see below), whose sum is σ = 128065168. Its totient is φ = 34664112.

The previous prime is 71254121. The next prime is 71254159. The reversal of 71254156 is 65145217.

It is not an unprimeable number, because it can be changed into a prime (71254159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240576 + ... + 240871.

Almost surely, 2^71254156 is an apocalyptic number.

It is an amenable number.

71254156 is a deficient number, since it is larger than the sum of its proper divisors (56811012).

71254156 is a wasteful number, since it uses less digits than its factorization.

71254156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481488 (or 481486 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 71254156 is about 8441.2176846709. The cubic root of 71254156 is about 414.5752774801.

The spelling of 71254156 in words is "seventy-one million, two hundred fifty-four thousand, one hundred fifty-six".