65219142 has 16 divisors (see below), whose sum is σ = 130524912. Its totient is φ = 21725280.

The previous prime is 65219137. The next prime is 65219183. The reversal of 65219142 is 24191256.

65219142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10308 + ... + 15384.

It is an arithmetic number, because the mean of its divisors is an integer number (8157807).

Almost surely, 2^65219142 is an apocalyptic number.

65219142 is an abundant number, since it is smaller than the sum of its proper divisors (65305770).

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

65219142 is a wasteful number, since it uses less digits than its factorization.

65219142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223.

The product of its digits is 4320, while the sum is 30.

The square root of 65219142 is about 8075.8369225734. The cubic root of 65219142 is about 402.5239202378.

The spelling of 65219142 in words is "sixty-five million, two hundred nineteen thousand, one hundred forty-two".