71650130 has 16 divisors (see below), whose sum is σ = 132456600. Its totient is φ = 27885312.

The previous prime is 71650091. The next prime is 71650151. The reversal of 71650130 is 3105617.

It can be written as a sum of positive squares in 4 ways, for example, as 70241161 + 1408969 = 8381^2 + 1187^2 .

It is a super-2 number, since 2×71650130² = 10267482258033800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71650096 and 71650105.

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 7 ways as a sum of consecutive naturals, for example, 96455 + ... + 97194.

Almost surely, 2^71650130 is an apocalyptic number.

71650130 is a deficient number, since it is larger than the sum of its proper divisors (60806470).

71650130 is a wasteful number, since it uses less digits than its factorization.

71650130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193693.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 71650130 is about 8464.6399805308. The cubic root of 71650130 is about 415.3418193133.

Adding to 71650130 its reverse (3105617), we get a palindrome (74755747).

The spelling of 71650130 in words is "seventy-one million, six hundred fifty thousand, one hundred thirty".