71442130 has 16 divisors (see below), whose sum is σ = 129112704. Its totient is φ = 28462000.

The previous prime is 71442113. The next prime is 71442157. The reversal of 71442130 is 3124417.

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, 11722 + ... + 16741.

It is an arithmetic number, because the mean of its divisors is an integer number (8069544).

Almost surely, 2^71442130 is an apocalyptic number.

71442130 is a deficient number, since it is larger than the sum of its proper divisors (57670574).

71442130 is a wasteful number, since it uses less digits than its factorization.

71442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28721.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 71442130 is about 8452.3446451266. The cubic root of 71442130 is about 414.9395179676.

Adding to 71442130 its reverse (3124417), we get a palindrome (74566547).

The spelling of 71442130 in words is "seventy-one million, four hundred forty-two thousand, one hundred thirty".