65231479 has 2 divisors, whose sum is σ = 65231480. Its totient is φ = 65231478.

The previous prime is 65231477. The next prime is 65231513. The reversal of 65231479 is 97413256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65231479 - 2¹ = 65231477 is a prime.

Together with 65231477, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65231477) 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 as a sum of consecutive naturals, namely, 32615739 + 32615740.

It is an arithmetic number, because the mean of its divisors is an integer number (32615740).

Almost surely, 2^65231479 is an apocalyptic number.

65231479 is a deficient number, since it is larger than the sum of its proper divisors (1).

65231479 is an equidigital number, since it uses as much as digits as its factorization.

65231479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 65231479 is about 8076.6007082188. The cubic root of 65231479 is about 402.5492994152.

It can be divided in two parts, 652 and 31479, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 65231479 in words is "sixty-five million, two hundred thirty-one thousand, four hundred seventy-nine".