65248143 has 8 divisors (see below), whose sum is σ = 87582000. Its totient is φ = 43206528.

The previous prime is 65248133. The next prime is 65248177. The reversal of 65248143 is 34184256.

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

It is not a de Polignac number, because 65248143 - 2²¹ = 63150991 is a prime.

It is a super-3 number, since 3×65248143³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65248123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72538 + ... + 73431.

It is an arithmetic number, because the mean of its divisors is an integer number (10947750).

Almost surely, 2^65248143 is an apocalyptic number.

65248143 is a deficient number, since it is larger than the sum of its proper divisors (22333857).

65248143 is a wasteful number, since it uses less digits than its factorization.

65248143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146121.

The product of its digits is 23040, while the sum is 33.

The square root of 65248143 is about 8077.6322644696. The cubic root of 65248143 is about 402.5835748422.

Adding to 65248143 its sum of digits (33), we get a triangular number (65248176 = T₁₁₄₂₃).

The spelling of 65248143 in words is "sixty-five million, two hundred forty-eight thousand, one hundred forty-three".