2103642554 has 16 divisors (see below), whose sum is σ = 3418547328. Its totient is φ = 965096112.

The previous prime is 2103642493. The next prime is 2103642559. The reversal of 2103642554 is 4552463012.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2103642554.

It is not an unprimeable number, because it can be changed into a prime (2103642559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237902 + ... + 246585.

It is an arithmetic number, because the mean of its divisors is an integer number (213659208).

Almost surely, 2^2103642554 is an apocalyptic number.

2103642554 is a deficient number, since it is larger than the sum of its proper divisors (1314904774).

2103642554 is a wasteful number, since it uses less digits than its factorization.

2103642554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484669.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2103642554 is about 45865.4832526596. The cubic root of 2103642554 is about 1281.3191466343.

The spelling of 2103642554 in words is "two billion, one hundred three million, six hundred forty-two thousand, five hundred fifty-four".