549157 has 8 divisors (see below), whose sum is σ = 660800. Its totient is φ = 445824.

The previous prime is 549149. The next prime is 549161. The reversal of 549157 is 751945.

549157 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 549157 - 2³ = 549149 is a prime.

549157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1932 + ... + 2197.

It is an arithmetic number, because the mean of its divisors is an integer number (82600).

2⁵⁴⁹¹⁵⁷ is an apocalyptic number.

It is an amenable number.

549157 is a deficient number, since it is larger than the sum of its proper divisors (111643).

549157 is a wasteful number, since it uses less digits than its factorization.

549157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155.

The product of its digits is 6300, while the sum is 31.

The square root of 549157 is about 741.0512802769. The cubic root of 549157 is about 81.8902457867.

The spelling of 549157 in words is "five hundred forty-nine thousand, one hundred fifty-seven".