2154908481 has 48 divisors (see below), whose sum is σ = 3283291200. Its totient is φ = 1254718080.

The previous prime is 2154908461. The next prime is 2154908501. The reversal of 2154908481 is 1848094512.

It is an interprime number because it is at equal distance from previous prime (2154908461) and next prime (2154908501).

It is not a de Polignac number, because 2154908481 - 2¹³ = 2154900289 is a prime.

It is a super-2 number, since 2×2154908481² = 9287261122971454722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2154908401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2915610 + ... + 2916348.

It is an arithmetic number, because the mean of its divisors is an integer number (68401900).

Almost surely, 2^2154908481 is an apocalyptic number.

It is an amenable number.

2154908481 is a deficient number, since it is larger than the sum of its proper divisors (1128382719).

2154908481 is a wasteful number, since it uses less digits than its factorization.

2154908481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070 (or 1059 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 2154908481 is about 46420.9918140490. The cubic root of 2154908481 is about 1291.6443348166.

The spelling of 2154908481 in words is "two billion, one hundred fifty-four million, nine hundred eight thousand, four hundred eighty-one".