2423172155 has 4 divisors (see below), whose sum is σ = 2907806592. Its totient is φ = 1938537720.

The previous prime is 2423172131. The next prime is 2423172179. The reversal of 2423172155 is 5512713242.

2423172155 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, and also an emirpimes, since its reverse is a distinct semiprime: 5512713242 = 2 ⋅2756356621.

It is an interprime number because it is at equal distance from previous prime (2423172131) and next prime (2423172179).

It is not a de Polignac number, because 2423172155 - 2⁸ = 2423171899 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, 242317211 + ... + 242317220.

It is an arithmetic number, because the mean of its divisors is an integer number (726951648).

Almost surely, 2^2423172155 is an apocalyptic number.

2423172155 is a deficient number, since it is larger than the sum of its proper divisors (484634437).

2423172155 is an equidigital number, since it uses as much as digits as its factorization.

2423172155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484634436.

The product of its digits is 16800, while the sum is 32.

The square root of 2423172155 is about 49225.7265563445. The cubic root of 2423172155 is about 1343.1610519365.

Adding to 2423172155 its reverse (5512713242), we get a palindrome (7935885397).

The spelling of 2423172155 in words is "two billion, four hundred twenty-three million, one hundred seventy-two thousand, one hundred fifty-five".