2140505454 has 8 divisors (see below), whose sum is σ = 4281010920. Its totient is φ = 713501816.

The previous prime is 2140505383. The next prime is 2140505459. The reversal of 2140505454 is 4545050412.

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

2140505454 is an admirable number.

It is a super-2 number, since 2×2140505454² = 9163527197207492232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140505459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178375449 + ... + 178375460.

It is an arithmetic number, because the mean of its divisors is an integer number (535126365).

Almost surely, 2^2140505454 is an apocalyptic number.

2140505454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2140505454 is a wasteful number, since it uses less digits than its factorization.

2140505454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356750914.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2140505454 is about 46265.5968728385. The cubic root of 2140505454 is about 1288.7601921434.

Adding to 2140505454 its reverse (4545050412), we get a palindrome (6685555866).

The spelling of 2140505454 in words is "two billion, one hundred forty million, five hundred five thousand, four hundred fifty-four".