236149 has 4 divisors (see below), whose sum is σ = 238464. Its totient is φ = 233836.

The previous prime is 236143. The next prime is 236153. The reversal of 236149 is 941632.

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 a cyclic number.

It is not a de Polignac number, because 236149 - 2⁷ = 236021 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

236149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (236143) 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 3 ways as a sum of consecutive naturals, for example, 997 + ... + 1210.

It is an arithmetic number, because the mean of its divisors is an integer number (59616).

236149 is a Friedman number, since it can be written as 6*(3^9-4)*2+1, using all its digits and the basic arithmetic operations.

2²³⁶¹⁴⁹ is an apocalyptic number.

It is an amenable number.

236149 is a deficient number, since it is larger than the sum of its proper divisors (2315).

236149 is a wasteful number, since it uses less digits than its factorization.

236149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314.

The product of its digits is 1296, while the sum is 25.

The square root of 236149 is about 485.9516436848. The cubic root of 236149 is about 61.8104687215.

The spelling of 236149 in words is "two hundred thirty-six thousand, one hundred forty-nine".