71227134 has 64 divisors (see below), whose sum is σ = 174274560. Its totient is φ = 21562200.

The previous prime is 71227073. The next prime is 71227139. The reversal of 71227134 is 43172217.

It is a happy number.

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 = 71227098 and 71227107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71227139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71379 + ... + 72369.

It is an arithmetic number, because the mean of its divisors is an integer number (2723040).

Almost surely, 2^71227134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71227134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87137280).

71227134 is an abundant number, since it is smaller than the sum of its proper divisors (103047426).

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

71227134 is a wasteful number, since it uses less digits than its factorization.

71227134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1007 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 71227134 is about 8439.6169344349. The cubic root of 71227134 is about 414.5228638376.

The spelling of 71227134 in words is "seventy-one million, two hundred twenty-seven thousand, one hundred thirty-four".