202142638534 has 8 divisors (see below), whose sum is σ = 304966640160. Its totient is φ = 100487091816.

The previous prime is 202142638517. The next prime is 202142638543. The reversal of 202142638534 is 435836241202.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292113294 + ... + 292113985.

It is an arithmetic number, because the mean of its divisors is an integer number (38120830020).

Almost surely, 2^202142638534 is an apocalyptic number.

202142638534 is a deficient number, since it is larger than the sum of its proper divisors (102824001626).

202142638534 is a wasteful number, since it uses less digits than its factorization.

202142638534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584227454.

The product of its (nonzero) digits is 276480, while the sum is 40.

Adding to 202142638534 its reverse (435836241202), we get a palindrome (637978879736).

The spelling of 202142638534 in words is "two hundred two billion, one hundred forty-two million, six hundred thirty-eight thousand, five hundred thirty-four".