65212442 has 8 divisors (see below), whose sum is σ = 103572756. Its totient is φ = 30688192.

The previous prime is 65212439. The next prime is 65212447. The reversal of 65212442 is 24421256.

It can be written as a sum of positive squares in 2 ways, for example, as 62552281 + 2660161 = 7909^2 + 1631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (65212447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958973 + ... + 959040.

Almost surely, 2^65212442 is an apocalyptic number.

65212442 is a deficient number, since it is larger than the sum of its proper divisors (38360314).

65212442 is a wasteful number, since it uses less digits than its factorization.

65212442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918032.

The product of its digits is 3840, while the sum is 26.

The square root of 65212442 is about 8075.4220942314. The cubic root of 65212442 is about 402.5101359278.

Adding to 65212442 its reverse (24421256), we get a palindrome (89633698).

The spelling of 65212442 in words is "sixty-five million, two hundred twelve thousand, four hundred forty-two".