71054130 has 128 divisors (see below), whose sum is σ = 208355328. Its totient is φ = 15155712.

The previous prime is 71054119. The next prime is 71054131. The reversal of 71054130 is 3145017.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71054097 and 71054106.

It is not an unprimeable number, because it can be changed into a prime (71054131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226854 + ... + 227166.

It is an arithmetic number, because the mean of its divisors is an integer number (1627776).

Almost surely, 2^71054130 is an apocalyptic number.

71054130 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 71054130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104177664).

71054130 is an abundant number, since it is smaller than the sum of its proper divisors (137301198).

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

71054130 is a wasteful number, since it uses less digits than its factorization.

71054130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 71054130 is about 8429.3611857602. The cubic root of 71054130 is about 414.1869794152.

Adding to 71054130 its reverse (3145017), we get a palindrome (74199147).

The spelling of 71054130 in words is "seventy-one million, fifty-four thousand, one hundred thirty".