2143155154 has 8 divisors (see below), whose sum is σ = 3673980288. Its totient is φ = 918495060.

The previous prime is 2143155149. The next prime is 2143155169. The reversal of 2143155154 is 4515513412.

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

It is a super-2 number, since 2×2143155154² = 9186228028233527432, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76541242 + ... + 76541269.

It is an arithmetic number, because the mean of its divisors is an integer number (459247536).

Almost surely, 2^2143155154 is an apocalyptic number.

2143155154 is a deficient number, since it is larger than the sum of its proper divisors (1530825134).

2143155154 is a wasteful number, since it uses less digits than its factorization.

2143155154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153082520.

The product of its digits is 12000, while the sum is 31.

The square root of 2143155154 is about 46294.2237649580. The cubic root of 2143155154 is about 1289.2917519187.

Adding to 2143155154 its reverse (4515513412), we get a palindrome (6658668566).

The spelling of 2143155154 in words is "two billion, one hundred forty-three million, one hundred fifty-five thousand, one hundred fifty-four".