2153155546 has 8 divisors (see below), whose sum is σ = 3230102880. Its totient is φ = 1076454588.

The previous prime is 2153155517. The next prime is 2153155577. The reversal of 2153155546 is 6455513512.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 37926 + ... + 75793.

It is an arithmetic number, because the mean of its divisors is an integer number (403762860).

Almost surely, 2^2153155546 is an apocalyptic number.

2153155546 is a deficient number, since it is larger than the sum of its proper divisors (1076947334).

2153155546 is a wasteful number, since it uses less digits than its factorization.

2153155546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123188.

The product of its digits is 90000, while the sum is 37.

The square root of 2153155546 is about 46402.1071288794. The cubic root of 2153155546 is about 1291.2940055106.

It can be divided in two parts, 21531 and 55546, that added together give a palindrome (77077).

The spelling of 2153155546 in words is "two billion, one hundred fifty-three million, one hundred fifty-five thousand, five hundred forty-six".