2154040533 has 10 divisors (see below), whose sum is σ = 3217764374. Its totient is φ = 1436026968.

The previous prime is 2154040489. The next prime is 2154040541. The reversal of 2154040533 is 3350404512.

2154040533 is a `hidden beast` number, since 215 + 40 + 405 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1978292484 + 175748049 = 44478^2 + 13257^2 .

It is not a de Polignac number, because 2154040533 - 2¹⁴ = 2154024149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154040497 and 2154040506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154040543) 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 9 ways as a sum of consecutive naturals, for example, 13296466 + ... + 13296627.

Almost surely, 2^2154040533 is an apocalyptic number.

It is an amenable number.

2154040533 is a deficient number, since it is larger than the sum of its proper divisors (1063723841).

2154040533 is an equidigital number, since it uses as much as digits as its factorization.

2154040533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26593105 (or 26593096 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2154040533 is about 46411.6422139963. The cubic root of 2154040533 is about 1291.4708965668.

The spelling of 2154040533 in words is "two billion, one hundred fifty-four million, forty thousand, five hundred thirty-three".