65470131 has 24 divisors (see below), whose sum is σ = 97563024. Its totient is φ = 42275520.

The previous prime is 65470129. The next prime is 65470133. The reversal of 65470131 is 13107456.

65470131 is a `hidden beast` number, since 65 + 470 + 131 = 666.

It is an interprime number because it is at equal distance from previous prime (65470129) and next prime (65470133).

It is not a de Polignac number, because 65470131 - 2¹ = 65470129 is a prime.

It is a super-2 number, since 2×65470131² = 8572676106314322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65470095 and 65470104.

It is not an unprimeable number, because it can be changed into a prime (65470133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139960 + ... + 140426.

It is an arithmetic number, because the mean of its divisors is an integer number (4065126).

Almost surely, 2^65470131 is an apocalyptic number.

65470131 is a deficient number, since it is larger than the sum of its proper divisors (32092893).

65470131 is a wasteful number, since it uses less digits than its factorization.

65470131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 65470131 is about 8091.3615047160. The cubic root of 65470131 is about 403.0396162415.

Adding to 65470131 its reverse (13107456), we get a palindrome (78577587).

The spelling of 65470131 in words is "sixty-five million, four hundred seventy thousand, one hundred thirty-one".