2142140454 has 24 divisors (see below), whose sum is σ = 4914322920. Its totient is φ = 672043968.

The previous prime is 2142140423. The next prime is 2142140513. The reversal of 2142140454 is 4540412412.

It is a super-2 number, since 2×2142140454² = 9177531449326652232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3499924 + ... + 3500535.

It is an arithmetic number, because the mean of its divisors is an integer number (204763455).

Almost surely, 2^2142140454 is an apocalyptic number.

2142140454 is an abundant number, since it is smaller than the sum of its proper divisors (2772182466).

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

2142140454 is a wasteful number, since it uses less digits than its factorization.

2142140454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000484 (or 7000481 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 2142140454 is about 46283.2632168476. The cubic root of 2142140454 is about 1289.0882434202.

Adding to 2142140454 its reverse (4540412412), we get a palindrome (6682552866).

The spelling of 2142140454 in words is "two billion, one hundred forty-two million, one hundred forty thousand, four hundred fifty-four".