71815348 has 12 divisors (see below), whose sum is σ = 137102112. Its totient is φ = 32643320.

The previous prime is 71815301. The next prime is 71815391. The reversal of 71815348 is 84351817.

It is a super-2 number, since 2×71815348² = 10314888416722208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816040 + ... + 816127.

It is an arithmetic number, because the mean of its divisors is an integer number (11425176).

Almost surely, 2^71815348 is an apocalyptic number.

It is an amenable number.

71815348 is a deficient number, since it is larger than the sum of its proper divisors (65286764).

71815348 is a wasteful number, since it uses less digits than its factorization.

71815348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632182 (or 1632180 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 71815348 is about 8474.3936656259. The cubic root of 71815348 is about 415.6608197444.

It can be divided in two parts, 718153 and 48, that added together give a triangular number (718201 = T₁₁₉₈).

The spelling of 71815348 in words is "seventy-one million, eight hundred fifteen thousand, three hundred forty-eight".