64827142 has 4 divisors (see below), whose sum is σ = 97240716. Its totient is φ = 32413570.

The previous prime is 64827131. The next prime is 64827149. The reversal of 64827142 is 24172846.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24172846 = 2 ⋅12086423.

It is a junction number, because it is equal to n+sod(n) for n = 64827098 and 64827107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64827149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16206784 + ... + 16206787.

It is an arithmetic number, because the mean of its divisors is an integer number (24310179).

Almost surely, 2^64827142 is an apocalyptic number.

64827142 is a deficient number, since it is larger than the sum of its proper divisors (32413574).

64827142 is a wasteful number, since it uses less digits than its factorization.

64827142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32413573.

The product of its digits is 21504, while the sum is 34.

The square root of 64827142 is about 8051.5304135301. The cubic root of 64827142 is about 401.7158416940.

Adding to 64827142 its reverse (24172846), we get a palindrome (88999988).

The spelling of 64827142 in words is "sixty-four million, eight hundred twenty-seven thousand, one hundred forty-two".