54145091 has 16 divisors (see below), whose sum is σ = 72699648. Its totient is φ = 38944800.

The previous prime is 54145073. The next prime is 54145111. The reversal of 54145091 is 19054145.

It is a cyclic number.

It is not a de Polignac number, because 54145091 - 2¹⁴ = 54128707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54145031) 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 15 ways as a sum of consecutive naturals, for example, 26045 + ... + 28046.

It is an arithmetic number, because the mean of its divisors is an integer number (4543728).

Almost surely, 2^54145091 is an apocalyptic number.

54145091 is a deficient number, since it is larger than the sum of its proper divisors (18554557).

54145091 is a wasteful number, since it uses less digits than its factorization.

54145091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54122.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 54145091 is about 7358.3347980368. The cubic root of 54145091 is about 378.3145366836.

The spelling of 54145091 in words is "fifty-four million, one hundred forty-five thousand, ninety-one".