71545146 has 96 divisors (see below), whose sum is σ = 167883840. Its totient is φ = 20224512.

The previous prime is 71545141. The next prime is 71545153. The reversal of 71545146 is 64154517.

It is a super-2 number, since 2×71545146² = 10237415832322632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71545141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1067805 + ... + 1067871.

It is an arithmetic number, because the mean of its divisors is an integer number (1748790).

Almost surely, 2^71545146 is an apocalyptic number.

71545146 is an abundant number, since it is smaller than the sum of its proper divisors (96338694).

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

71545146 is a wasteful number, since it uses less digits than its factorization.

71545146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 137 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 71545146 is about 8458.4363803247. The cubic root of 71545146 is about 415.1388629024.

The spelling of 71545146 in words is "seventy-one million, five hundred forty-five thousand, one hundred forty-six".