65145319 has 8 divisors (see below), whose sum is σ = 68716080. Its totient is φ = 61588800.

The previous prime is 65145313. The next prime is 65145323. The reversal of 65145319 is 91354156.

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 65145319 - 2⁵ = 65145287 is a prime.

It is a super-2 number, since 2×65145319² = 8487825175223522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65145313) 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, 6609 + ... + 13189.

It is an arithmetic number, because the mean of its divisors is an integer number (8589510).

Almost surely, 2^65145319 is an apocalyptic number.

65145319 is a deficient number, since it is larger than the sum of its proper divisors (3570761).

65145319 is a wasteful number, since it uses less digits than its factorization.

65145319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7121.

The product of its digits is 16200, while the sum is 34.

The square root of 65145319 is about 8071.2650185705. The cubic root of 65145319 is about 402.3719876334.

The spelling of 65145319 in words is "sixty-five million, one hundred forty-five thousand, three hundred nineteen".