71576142 has 32 divisors (see below), whose sum is σ = 157697280. Its totient is φ = 21477120.

The previous prime is 71576111. The next prime is 71576149. The reversal of 71576142 is 24167517.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71576149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1534 + ... + 12062.

It is an arithmetic number, because the mean of its divisors is an integer number (4928040).

Almost surely, 2^71576142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71576142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78848640).

71576142 is an abundant number, since it is smaller than the sum of its proper divisors (86121138).

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

71576142 is a wasteful number, since it uses less digits than its factorization.

71576142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10648.

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

The square root of 71576142 is about 8460.2684354576. The cubic root of 71576142 is about 415.1988054101.

The spelling of 71576142 in words is "seventy-one million, five hundred seventy-six thousand, one hundred forty-two".