3242540155 has 4 divisors (see below), whose sum is σ = 3891048192. Its totient is φ = 2594032120.

The previous prime is 3242540131. The next prime is 3242540183. The reversal of 3242540155 is 5510452423.

3242540155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3242540155 - 2⁵ = 3242540123 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, 324254011 + ... + 324254020.

It is an arithmetic number, because the mean of its divisors is an integer number (972762048).

Almost surely, 2^3242540155 is an apocalyptic number.

3242540155 is a deficient number, since it is larger than the sum of its proper divisors (648508037).

3242540155 is an equidigital number, since it uses as much as digits as its factorization.

3242540155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648508036.

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

The square root of 3242540155 is about 56943.3064986571. The cubic root of 3242540155 is about 1480.1138448766.

Adding to 3242540155 its reverse (5510452423), we get a palindrome (8752992578).

The spelling of 3242540155 in words is "three billion, two hundred forty-two million, five hundred forty thousand, one hundred fifty-five".