538149 has 4 divisors (see below), whose sum is σ = 717536. Its totient is φ = 358764.

The previous prime is 538147. The next prime is 538151. The reversal of 538149 is 941835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (538147) and next prime (538151).

It is not a de Polignac number, because 538149 - 2¹ = 538147 is a prime.

It is a D-number.

It is a Duffinian number.

538149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89689 + ... + 89694.

It is an arithmetic number, because the mean of its divisors is an integer number (179384).

2⁵³⁸¹⁴⁹ is an apocalyptic number.

It is an amenable number.

538149 is a deficient number, since it is larger than the sum of its proper divisors (179387).

538149 is a wasteful number, since it uses less digits than its factorization.

538149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179386.

The product of its digits is 4320, while the sum is 30.

The square root of 538149 is about 733.5863957299. The cubic root of 538149 is about 81.3393777795.

The spelling of 538149 in words is "five hundred thirty-eight thousand, one hundred forty-nine".