71270538 has 16 divisors (see below), whose sum is σ = 142656960. Its totient is φ = 23737536.

The previous prime is 71270527. The next prime is 71270543. The reversal of 71270538 is 83507217.

It is a junction number, because it is equal to n+sod(n) for n = 71270499 and 71270508.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4578 + ... + 12786.

It is an arithmetic number, because the mean of its divisors is an integer number (8916060).

Almost surely, 2^71270538 is an apocalyptic number.

71270538 is an abundant number, since it is smaller than the sum of its proper divisors (71386422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71270538 is a wasteful number, since it uses less digits than its factorization.

71270538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9661.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 71270538 is about 8442.1879865352. The cubic root of 71270538 is about 414.6070466295.

The spelling of 71270538 in words is "seventy-one million, two hundred seventy thousand, five hundred thirty-eight".