2140545542 has 8 divisors (see below), whose sum is σ = 3211579800. Its totient is φ = 1070018944.

The previous prime is 2140545541. The next prime is 2140545551. The reversal of 2140545542 is 2455450412.

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

It is a junction number, because it is equal to n+sod(n) for n = 2140545499 and 2140545508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140545541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116192 + ... + 133347.

It is an arithmetic number, because the mean of its divisors is an integer number (401447475).

Almost surely, 2^2140545542 is an apocalyptic number.

2140545542 is a deficient number, since it is larger than the sum of its proper divisors (1071034258).

2140545542 is a wasteful number, since it uses less digits than its factorization.

2140545542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253830.

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 2140545542 is about 46266.0301084932. The cubic root of 2140545542 is about 1288.7682375167.

Adding to 2140545542 its reverse (2455450412), we get a palindrome (4595995954).

The spelling of 2140545542 in words is "two billion, one hundred forty million, five hundred forty-five thousand, five hundred forty-two".