65921141 has 8 divisors (see below), whose sum is σ = 77445984. Its totient is φ = 55318320.

The previous prime is 65921137. The next prime is 65921179. The reversal of 65921141 is 14112956.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65921141 - 2² = 65921137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65921041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230351 + ... + 230636.

It is an arithmetic number, because the mean of its divisors is an integer number (9680748).

Almost surely, 2^65921141 is an apocalyptic number.

It is an amenable number.

65921141 is a deficient number, since it is larger than the sum of its proper divisors (11524843).

65921141 is a wasteful number, since it uses less digits than its factorization.

65921141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461011.

The product of its digits is 2160, while the sum is 29.

The square root of 65921141 is about 8119.1835180639. The cubic root of 65921141 is about 403.9629843059.

The spelling of 65921141 in words is "sixty-five million, nine hundred twenty-one thousand, one hundred forty-one".