65863149 has 16 divisors (see below), whose sum is σ = 95983104. Its totient is φ = 39841200.

The previous prime is 65863129. The next prime is 65863157. The reversal of 65863149 is 94136856.

It is not a de Polignac number, because 65863149 - 2⁹ = 65862637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65863149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65863129) 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, 19242 + ... + 22404.

It is an arithmetic number, because the mean of its divisors is an integer number (5998944).

Almost surely, 2^65863149 is an apocalyptic number.

It is an amenable number.

65863149 is a deficient number, since it is larger than the sum of its proper divisors (30119955).

65863149 is a wasteful number, since it uses less digits than its factorization.

65863149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808.

The product of its digits is 155520, while the sum is 42.

The square root of 65863149 is about 8115.6114372239. The cubic root of 65863149 is about 403.8444917455.

The spelling of 65863149 in words is "sixty-five million, eight hundred sixty-three thousand, one hundred forty-nine".