65238351 has 4 divisors (see below), whose sum is σ = 86984472. Its totient is φ = 43492232.

The previous prime is 65238347. The next prime is 65238361. The reversal of 65238351 is 15383256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65238351 - 2² = 65238347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65238301) 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 3 ways as a sum of consecutive naturals, for example, 10873056 + ... + 10873061.

It is an arithmetic number, because the mean of its divisors is an integer number (21746118).

Almost surely, 2^65238351 is an apocalyptic number.

65238351 is a deficient number, since it is larger than the sum of its proper divisors (21746121).

65238351 is a wasteful number, since it uses less digits than its factorization.

65238351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21746120.

The product of its digits is 21600, while the sum is 33.

The square root of 65238351 is about 8077.0261235185. The cubic root of 65238351 is about 402.5634348280.

The spelling of 65238351 in words is "sixty-five million, two hundred thirty-eight thousand, three hundred fifty-one".