2140555123 has 8 divisors (see below), whose sum is σ = 2460490848. Its totient is φ = 1824154944.

The previous prime is 2140555057. The next prime is 2140555133. The reversal of 2140555123 is 3215550412.

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-2140555123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2140555091 and 2140555100.

It is not an unprimeable number, because it can be changed into a prime (2140555133) 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, 882586 + ... + 885007.

It is an arithmetic number, because the mean of its divisors is an integer number (307561356).

Almost surely, 2^2140555123 is an apocalyptic number.

2140555123 is a deficient number, since it is larger than the sum of its proper divisors (319935725).

2140555123 is a wasteful number, since it uses less digits than its factorization.

2140555123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767773.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2140555123 is about 46266.1336508682. The cubic root of 2140555123 is about 1288.7701603396.

The spelling of 2140555123 in words is "two billion, one hundred forty million, five hundred fifty-five thousand, one hundred twenty-three".