2153545042 has 8 divisors (see below), whose sum is σ = 3523982832. Its totient is φ = 978884100.

The previous prime is 2153545007. The next prime is 2153545081. The reversal of 2153545042 is 2405453512.

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 = 2153544995 and 2153545013.

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, 48944184 + ... + 48944227.

It is an arithmetic number, because the mean of its divisors is an integer number (440497854).

Almost surely, 2^2153545042 is an apocalyptic number.

2153545042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2153545042 is a deficient number, since it is larger than the sum of its proper divisors (1370437790).

2153545042 is a wasteful number, since it uses less digits than its factorization.

2153545042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97888424.

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

The square root of 2153545042 is about 46406.3039036724. The cubic root of 2153545042 is about 1291.3718638779.

Adding to 2153545042 its reverse (2405453512), we get a palindrome (4558998554).

The spelling of 2153545042 in words is "two billion, one hundred fifty-three million, five hundred forty-five thousand, forty-two".