64239154 has 16 divisors (see below), whose sum is σ = 110230848. Its totient is φ = 27504432.

The previous prime is 64239151. The next prime is 64239157. The reversal of 64239154 is 45193246.

It is a happy number.

64239154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64239151) and next prime (64239157).

It is not an unprimeable number, because it can be changed into a prime (64239151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21517 + ... + 24319.

It is an arithmetic number, because the mean of its divisors is an integer number (6889428).

Almost surely, 2^64239154 is an apocalyptic number.

64239154 is a deficient number, since it is larger than the sum of its proper divisors (45991694).

64239154 is a wasteful number, since it uses less digits than its factorization.

64239154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449.

The product of its digits is 25920, while the sum is 34.

The square root of 64239154 is about 8014.9331874945. The cubic root of 64239154 is about 400.4976181836.

The spelling of 64239154 in words is "sixty-four million, two hundred thirty-nine thousand, one hundred fifty-four".