2151549108 has 48 divisors (see below), whose sum is σ = 5589192000. Its totient is φ = 715755744.

The previous prime is 2151549089. The next prime is 2151549133. The reversal of 2151549108 is 8019451512.

2151549108 is a `hidden beast` number, since 2 + 1 + 5 + 1 + 549 + 108 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 35403 + ... + 74541.

It is an arithmetic number, because the mean of its divisors is an integer number (116441500).

Almost surely, 2^2151549108 is an apocalyptic number.

It is an amenable number.

2151549108 is an abundant number, since it is smaller than the sum of its proper divisors (3437642892).

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

2151549108 is a wasteful number, since it uses less digits than its factorization.

2151549108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39661 (or 39653 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 2151549108 is about 46384.7939307700. The cubic root of 2151549108 is about 1290.9727870604.

The spelling of 2151549108 in words is "two billion, one hundred fifty-one million, five hundred forty-nine thousand, one hundred eight".