65231642 has 12 divisors (see below), whose sum is σ = 113822730. Its totient is φ = 27956376.

The previous prime is 65231599. The next prime is 65231653. The reversal of 65231642 is 24613256.

It can be written as a sum of positive squares in only one way, i.e., 65141041 + 90601 = 8071^2 + 301^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 332717 + ... + 332912.

Almost surely, 2^65231642 is an apocalyptic number.

65231642 is a deficient number, since it is larger than the sum of its proper divisors (48591088).

65231642 is a wasteful number, since it uses less digits than its factorization.

65231642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665645 (or 665638 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 65231642 is about 8076.6107990914. The cubic root of 65231642 is about 402.5496347107.

Adding to 65231642 its reverse (24613256), we get a palindrome (89844898).

The spelling of 65231642 in words is "sixty-five million, two hundred thirty-one thousand, six hundred forty-two".