2154541331 has 8 divisors (see below), whose sum is σ = 2180206080. Its totient is φ = 2128968072.

The previous prime is 2154541231. The next prime is 2154541369. The reversal of 2154541331 is 1331454512.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2154541331 is a prime.

It is a super-2 number, since 2×2154541331² = 9284096693974503122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154541294 and 2154541303.

It is not an unprimeable number, because it can be changed into a prime (2154541231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25100 + ... + 70278.

It is an arithmetic number, because the mean of its divisors is an integer number (272525760).

Almost surely, 2^2154541331 is an apocalyptic number.

2154541331 is a deficient number, since it is larger than the sum of its proper divisors (25664749).

2154541331 is a wasteful number, since it uses less digits than its factorization.

2154541331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45745.

The product of its digits is 7200, while the sum is 29.

The square root of 2154541331 is about 46417.0370769182. The cubic root of 2154541331 is about 1291.5709745236.

Adding to 2154541331 its reverse (1331454512), we get a palindrome (3485995843).

The spelling of 2154541331 in words is "two billion, one hundred fifty-four million, five hundred forty-one thousand, three hundred thirty-one".