2154067144 has 16 divisors (see below), whose sum is σ = 4276457100. Its totient is φ = 1013678592.

The previous prime is 2154067141. The next prime is 2154067151. The reversal of 2154067144 is 4417604512.

It can be written as a sum of positive squares in 2 ways, for example, as 2142764100 + 11303044 = 46290^2 + 3362^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (2154067141) 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 3 ways as a sum of consecutive naturals, for example, 7919229 + ... + 7919500.

Almost surely, 2^2154067144 is an apocalyptic number.

It is an amenable number.

2154067144 is a deficient number, since it is larger than the sum of its proper divisors (2122389956).

2154067144 is a wasteful number, since it uses less digits than its factorization.

2154067144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15838752 (or 15838748 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 2154067144 is about 46411.9288976444. The cubic root of 2154067144 is about 1291.4762148187.

The spelling of 2154067144 in words is "two billion, one hundred fifty-four million, sixty-seven thousand, one hundred forty-four".