2153549412 has 54 divisors (see below), whose sum is σ = 6332465958. Its totient is φ = 615299328.

The previous prime is 2153549389. The next prime is 2153549423. The reversal of 2153549412 is 2149453512.

2153549412 is a `hidden beast` number, since 2 + 153 + 5 + 494 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2122813476 + 30735936 = 46074^2 + 5544^2 .

It is a super-3 number, since 3×2153549412³ (a number of 29 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 608653 + ... + 612180.

Almost surely, 2^2153549412 is an apocalyptic number.

It is an amenable number.

2153549412 is an abundant number, since it is smaller than the sum of its proper divisors (4178916546).

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

2153549412 is a wasteful number, since it uses less digits than its factorization.

2153549412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220857 (or 1220845 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 2153549412 is about 46406.3509877689. The cubic root of 2153549412 is about 1291.3727373665.

The spelling of 2153549412 in words is "two billion, one hundred fifty-three million, five hundred forty-nine thousand, four hundred twelve".