2154117422 has 32 divisors (see below), whose sum is σ = 3364187904. Its totient is φ = 1033704000.

The previous prime is 2154117397. The next prime is 2154117431. The reversal of 2154117422 is 2247114512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3583922 + ... + 3584522.

It is an arithmetic number, because the mean of its divisors is an integer number (105130872).

Almost surely, 2^2154117422 is an apocalyptic number.

2154117422 is a deficient number, since it is larger than the sum of its proper divisors (1210070482).

2154117422 is a wasteful number, since it uses less digits than its factorization.

2154117422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304.

The product of its digits is 4480, while the sum is 29.

The square root of 2154117422 is about 46412.4705440251. The cubic root of 2154117422 is about 1291.4862628398.

The spelling of 2154117422 in words is "two billion, one hundred fifty-four million, one hundred seventeen thousand, four hundred twenty-two".