65693145 has 32 divisors (see below), whose sum is σ = 120434688. Its totient is φ = 29953728.

The previous prime is 65693143. The next prime is 65693183. The reversal of 65693145 is 54139656.

It is not a de Polignac number, because 65693145 - 2¹ = 65693143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65693141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67452 + ... + 68418.

It is an arithmetic number, because the mean of its divisors is an integer number (3763584).

Almost surely, 2^65693145 is an apocalyptic number.

It is an amenable number.

65693145 is a deficient number, since it is larger than the sum of its proper divisors (54741543).

65693145 is a wasteful number, since it uses less digits than its factorization.

65693145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629.

The product of its digits is 97200, while the sum is 39.

The square root of 65693145 is about 8105.1307824118. The cubic root of 65693145 is about 403.4967285673.

The spelling of 65693145 in words is "sixty-five million, six hundred ninety-three thousand, one hundred forty-five".