71264542 has 32 divisors (see below), whose sum is σ = 114307200. Its totient is φ = 33266688.

The previous prime is 71264477. The next prime is 71264579. The reversal of 71264542 is 24546217.

Its product of digits (13440) is a multiple of the sum of its prime divisors (420).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298059 + ... + 298297.

It is an arithmetic number, because the mean of its divisors is an integer number (3572100).

Almost surely, 2^71264542 is an apocalyptic number.

71264542 is a deficient number, since it is larger than the sum of its proper divisors (43042658).

71264542 is a wasteful number, since it uses less digits than its factorization.

71264542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its digits is 13440, while the sum is 31.

The square root of 71264542 is about 8441.8328578574. The cubic root of 71264542 is about 414.5954193211.

The spelling of 71264542 in words is "seventy-one million, two hundred sixty-four thousand, five hundred forty-two".