65140347 has 16 divisors (see below), whose sum is σ = 90908928. Its totient is φ = 41411040.

The previous prime is 65140289. The next prime is 65140363. The reversal of 65140347 is 74304156.

It is not a de Polignac number, because 65140347 - 2⁷ = 65140219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65140367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24472 + ... + 27002.

It is an arithmetic number, because the mean of its divisors is an integer number (5681808).

Almost surely, 2^65140347 is an apocalyptic number.

65140347 is a deficient number, since it is larger than the sum of its proper divisors (25768581).

65140347 is a wasteful number, since it uses less digits than its factorization.

65140347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 65140347 is about 8070.9570064522. The cubic root of 65140347 is about 402.3617508047.

The spelling of 65140347 in words is "sixty-five million, one hundred forty thousand, three hundred forty-seven".