71090523 has 24 divisors (see below), whose sum is σ = 119756000. Its totient is φ = 40621392.

The previous prime is 71090507. The next prime is 71090527. The reversal of 71090523 is 32509017.

It is not a de Polignac number, because 71090523 - 2⁴ = 71090507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71090527) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8428 + ... + 14601.

Almost surely, 2^71090523 is an apocalyptic number.

71090523 is a deficient number, since it is larger than the sum of its proper divisors (48665477).

71090523 is a wasteful number, since it uses less digits than its factorization.

71090523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23056 (or 23039 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 71090523 is about 8431.5196139249. The cubic root of 71090523 is about 414.2576810713.

The spelling of 71090523 in words is "seventy-one million, ninety thousand, five hundred twenty-three".