65142711 has 28 divisors (see below), whose sum is σ = 98387488. Its totient is φ = 43110144.

The previous prime is 65142703. The next prime is 65142719. The reversal of 65142711 is 11724156.

It is a happy number.

65142711 is a `hidden beast` number, since 651 + 4 + 2 + 7 + 1 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (65142703) and next prime (65142719).

It is not a de Polignac number, because 65142711 - 2³ = 65142703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65142719) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 140466 + ... + 140928.

Almost surely, 2^65142711 is an apocalyptic number.

65142711 is a deficient number, since it is larger than the sum of its proper divisors (33244777).

65142711 is an equidigital number, since it uses as much as digits as its factorization.

65142711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 659 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 65142711 is about 8071.1034561577. The cubic root of 65142711 is about 402.3666180987.

Adding to 65142711 its reverse (11724156), we get a palindrome (76866867).

The spelling of 65142711 in words is "sixty-five million, one hundred forty-two thousand, seven hundred eleven".