2142636454 has 16 divisors (see below), whose sum is σ = 3673774368. Its totient is φ = 918101952.

The previous prime is 2142636443. The next prime is 2142636473. The reversal of 2142636454 is 4546362412.

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, 90064 + ... + 111340.

It is an arithmetic number, because the mean of its divisors is an integer number (229610898).

Almost surely, 2^2142636454 is an apocalyptic number.

2142636454 is a deficient number, since it is larger than the sum of its proper divisors (1531137914).

2142636454 is a wasteful number, since it uses less digits than its factorization.

2142636454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28479.

The product of its digits is 138240, while the sum is 37.

The square root of 2142636454 is about 46288.6212151539. The cubic root of 2142636454 is about 1289.1877293378.

Adding to 2142636454 its reverse (4546362412), we get a palindrome (6688998866).

The spelling of 2142636454 in words is "two billion, one hundred forty-two million, six hundred thirty-six thousand, four hundred fifty-four".