642058162 has 4 divisors (see below), whose sum is σ = 963087246. Its totient is φ = 321029080.

The previous prime is 642058147. The next prime is 642058169. The reversal of 642058162 is 261850246.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 562116681 + 79941481 = 23709^2 + 8941^2 .

It is not an unprimeable number, because it can be changed into a prime (642058169) 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 as a sum of consecutive naturals, namely, 160514539 + ... + 160514542.

Almost surely, 2^642058162 is an apocalyptic number.

642058162 is a deficient number, since it is larger than the sum of its proper divisors (321029084).

642058162 is a wasteful number, since it uses less digits than its factorization.

642058162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321029083.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 642058162 is about 25338.8666281663. The cubic root of 642058162 is about 862.6966741020.

The spelling of 642058162 in words is "six hundred forty-two million, fifty-eight thousand, one hundred sixty-two".