2140455445 has 8 divisors (see below), whose sum is σ = 2569514400. Its totient is φ = 1711719120.

The previous prime is 2140455437. The next prime is 2140455487. The reversal of 2140455445 is 5445540412.

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

It is not a de Polignac number, because 2140455445 - 2³ = 2140455437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2140455445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65811 + ... + 92800.

It is an arithmetic number, because the mean of its divisors is an integer number (321189300).

Almost surely, 2^2140455445 is an apocalyptic number.

It is an amenable number.

2140455445 is a deficient number, since it is larger than the sum of its proper divisors (429058955).

2140455445 is a wasteful number, since it uses less digits than its factorization.

2140455445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161315.

The product of its (nonzero) digits is 64000, while the sum is 34.

The square root of 2140455445 is about 46265.0564141016. The cubic root of 2140455445 is about 1288.7501555560.

Adding to 2140455445 its reverse (5445540412), we get a palindrome (7585995857).

The spelling of 2140455445 in words is "two billion, one hundred forty million, four hundred fifty-five thousand, four hundred forty-five".