642050134 has 8 divisors (see below), whose sum is σ = 1050627528. Its totient is φ = 291840960.

The previous prime is 642050131. The next prime is 642050141. The reversal of 642050134 is 431050246.

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

It is a junction number, because it is equal to n+sod(n) for n = 642050099 and 642050108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642050131) 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 3 ways as a sum of consecutive naturals, for example, 14592027 + ... + 14592070.

It is an arithmetic number, because the mean of its divisors is an integer number (131328441).

Almost surely, 2^642050134 is an apocalyptic number.

642050134 is a deficient number, since it is larger than the sum of its proper divisors (408577394).

642050134 is a wasteful number, since it uses less digits than its factorization.

642050134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29184110.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 642050134 is about 25338.7082149031. The cubic root of 642050134 is about 862.6930784995.

The spelling of 642050134 in words is "six hundred forty-two million, fifty thousand, one hundred thirty-four".