71443134 has 60 divisors (see below), whose sum is σ = 183686712. Its totient is φ = 20331000.

The previous prime is 71443121. The next prime is 71443147. The reversal of 71443134 is 43134417.

It is an interprime number because it is at equal distance from previous prime (71443121) and next prime (71443147).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 71443098 and 71443107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 284509 + ... + 284759.

Almost surely, 2^71443134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71443134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91843356).

71443134 is an abundant number, since it is smaller than the sum of its proper divisors (112243578).

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

71443134 is an equidigital number, since it uses as much as digits as its factorization.

71443134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 263 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 71443134 is about 8452.4040367223. The cubic root of 71443134 is about 414.9414617195.

The spelling of 71443134 in words is "seventy-one million, four hundred forty-three thousand, one hundred thirty-four".