2143579154 has 16 divisors (see below), whose sum is σ = 3335224992. Its totient is φ = 1032520608.

The previous prime is 2143579121. The next prime is 2143579159. The reversal of 2143579154 is 4519753412.

It is not an unprimeable number, because it can be changed into a prime (2143579159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164444 + ... + 176999.

It is an arithmetic number, because the mean of its divisors is an integer number (208451562).

Almost surely, 2^2143579154 is an apocalyptic number.

2143579154 is a deficient number, since it is larger than the sum of its proper divisors (1191645838).

2143579154 is a wasteful number, since it uses less digits than its factorization.

2143579154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341561.

The product of its digits is 151200, while the sum is 41.

The square root of 2143579154 is about 46298.8029434887. The cubic root of 2143579154 is about 1289.3767704416.

The spelling of 2143579154 in words is "two billion, one hundred forty-three million, five hundred seventy-nine thousand, one hundred fifty-four".