2155534042 has 8 divisors (see below), whose sum is σ = 3234168000. Its totient is φ = 1077478044.

The previous prime is 2155534019. The next prime is 2155534093. The reversal of 2155534042 is 2404355512.

2155534042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 2155533995 and 2155534013.

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, 135042 + ... + 150157.

It is an arithmetic number, because the mean of its divisors is an integer number (404271000).

Almost surely, 2^2155534042 is an apocalyptic number.

2155534042 is a deficient number, since it is larger than the sum of its proper divisors (1078633958).

2155534042 is a wasteful number, since it uses less digits than its factorization.

2155534042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288980.

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

The square root of 2155534042 is about 46427.7292358780. The cubic root of 2155534042 is about 1291.7693090564.

Adding to 2155534042 its reverse (2404355512), we get a palindrome (4559889554).

The spelling of 2155534042 in words is "two billion, one hundred fifty-five million, five hundred thirty-four thousand, forty-two".