65143892 has 12 divisors (see below), whose sum is σ = 124365696. Its totient is φ = 29610840.

The previous prime is 65143873. The next prime is 65143907. The reversal of 65143892 is 29834156.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740228 + ... + 740315.

It is an arithmetic number, because the mean of its divisors is an integer number (10363808).

Almost surely, 2^65143892 is an apocalyptic number.

It is an amenable number.

65143892 is a deficient number, since it is larger than the sum of its proper divisors (59221804).

65143892 is a wasteful number, since it uses less digits than its factorization.

65143892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480558 (or 1480556 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 65143892 is about 8071.1766180651. The cubic root of 65143892 is about 402.3690496427.

The spelling of 65143892 in words is "sixty-five million, one hundred forty-three thousand, eight hundred ninety-two".