71823130 has 32 divisors (see below), whose sum is σ = 137479680. Its totient is φ = 26922240.

The previous prime is 71823127. The next prime is 71823131. The reversal of 71823130 is 3132817.

It is a junction number, because it is equal to n+sod(n) for n = 71823095 and 71823104.

It is not an unprimeable number, because it can be changed into a prime (71823131) 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, 45291 + ... + 46849.

It is an arithmetic number, because the mean of its divisors is an integer number (4296240).

Almost surely, 2^71823130 is an apocalyptic number.

71823130 is a deficient number, since it is larger than the sum of its proper divisors (65656550).

71823130 is a wasteful number, since it uses less digits than its factorization.

71823130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 71823130 is about 8474.8528010816. The cubic root of 71823130 is about 415.6758330424.

Adding to 71823130 its reverse (3132817), we get a palindrome (74955947).

The spelling of 71823130 in words is "seventy-one million, eight hundred twenty-three thousand, one hundred thirty".