642150014 has 32 divisors (see below), whose sum is σ = 1080832896. Its totient is φ = 283647520.

The previous prime is 642150007. The next prime is 642150017. The reversal of 642150014 is 410051246.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642150017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122189 + ... + 127335.

It is an arithmetic number, because the mean of its divisors is an integer number (33776028).

Almost surely, 2^642150014 is an apocalyptic number.

642150014 is a deficient number, since it is larger than the sum of its proper divisors (438682882).

642150014 is a wasteful number, since it uses less digits than its factorization.

642150014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 642150014 is about 25340.6790358901. The cubic root of 642150014 is about 862.7378108926.

The spelling of 642150014 in words is "six hundred forty-two million, one hundred fifty thousand, fourteen".