65142331 has 2 divisors, whose sum is σ = 65142332. Its totient is φ = 65142330.

The previous prime is 65142299. The next prime is 65142347. The reversal of 65142331 is 13324156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65142331 - 2⁵ = 65142299 is a prime.

It is a super-2 number, since 2×65142331² = 8487046576227122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65142296 and 65142305.

It is not a weakly prime, because it can be changed into another prime (65142391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32571165 + 32571166.

It is an arithmetic number, because the mean of its divisors is an integer number (32571166).

Almost surely, 2^65142331 is an apocalyptic number.

65142331 is a deficient number, since it is larger than the sum of its proper divisors (1).

65142331 is an equidigital number, since it uses as much as digits as its factorization.

65142331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 65142331 is about 8071.0799153521. The cubic root of 65142331 is about 402.3658357159.

Adding to 65142331 its reverse (13324156), we get a palindrome (78466487).

The spelling of 65142331 in words is "sixty-five million, one hundred forty-two thousand, three hundred thirty-one".