2142545454 has 48 divisors (see below), whose sum is σ = 5307954912. Its totient is φ = 611855424.

The previous prime is 2142545443. The next prime is 2142545467. The reversal of 2142545454 is 4545452412.

2142545454 is a `hidden beast` number, since 21 + 42 + 54 + 545 + 4 = 666.

It is a super-2 number, since 2×2142545454² = 9181002044912132232, which contains 22 as substring.

2142545454 is a modest number, since divided by 545454 gives 2142 as remainder.

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 23 ways as a sum of consecutive naturals, for example, 442752 + ... + 447564.

It is an arithmetic number, because the mean of its divisors is an integer number (110582394).

Almost surely, 2^2142545454 is an apocalyptic number.

2142545454 is an abundant number, since it is smaller than the sum of its proper divisors (3165409458).

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

2142545454 is a wasteful number, since it uses less digits than its factorization.

2142545454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8361 (or 8358 counting only the distinct ones).

The product of its digits is 128000, while the sum is 36.

The square root of 2142545454 is about 46287.6382417595. The cubic root of 2142545454 is about 1289.1694780313.

Adding to 2142545454 its reverse (4545452412), we get a palindrome (6687997866).

The spelling of 2142545454 in words is "two billion, one hundred forty-two million, five hundred forty-five thousand, four hundred fifty-four".