2042534155 has 4 divisors (see below), whose sum is σ = 2451040992. Its totient is φ = 1634027320.

The previous prime is 2042534149. The next prime is 2042534171. The reversal of 2042534155 is 5514352402.

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

It is not a de Polignac number, because 2042534155 - 2³ = 2042534147 is a prime.

It is a Duffinian 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, 204253411 + ... + 204253420.

It is an arithmetic number, because the mean of its divisors is an integer number (612760248).

Almost surely, 2^2042534155 is an apocalyptic number.

2042534155 is a deficient number, since it is larger than the sum of its proper divisors (408506837).

2042534155 is an equidigital number, since it uses as much as digits as its factorization.

2042534155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408506836.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2042534155 is about 45194.4040230646. The cubic root of 2042534155 is about 1268.7900839739.

Adding to 2042534155 its reverse (5514352402), we get a palindrome (7556886557).

The spelling of 2042534155 in words is "two billion, forty-two million, five hundred thirty-four thousand, one hundred fifty-five".