2154067137 has 24 divisors (see below), whose sum is σ = 3157564904. Its totient is φ = 1414796544.

The previous prime is 2154067121. The next prime is 2154067141. The reversal of 2154067137 is 7317604512.

It is a happy number.

2154067137 is a `hidden beast` number, since 21 + 540 + 67 + 1 + 37 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 157854096 + 1996213041 = 12564^2 + 44679^2 .

It is not a de Polignac number, because 2154067137 - 2⁴ = 2154067121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154067187) 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 23 ways as a sum of consecutive naturals, for example, 1048203 + ... + 1050255.

Almost surely, 2^2154067137 is an apocalyptic number.

It is an amenable number.

2154067137 is a deficient number, since it is larger than the sum of its proper divisors (1003497767).

2154067137 is a wasteful number, since it uses less digits than its factorization.

2154067137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729 (or 3726 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 2154067137 is about 46411.9288222328. The cubic root of 2154067137 is about 1291.4762134198.

The spelling of 2154067137 in words is "two billion, one hundred fifty-four million, sixty-seven thousand, one hundred thirty-seven".