113949 has 12 divisors (see below), whose sum is σ = 179712. Its totient is φ = 69000.

The previous prime is 113947. The next prime is 113957. The reversal of 113949 is 949311.

It is not a de Polignac number, because 113949 - 2¹ = 113947 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113947) 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 11 ways as a sum of consecutive naturals, for example, 477 + ... + 674.

It is an arithmetic number, because the mean of its divisors is an integer number (14976).

2¹¹³⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

113949 is a deficient number, since it is larger than the sum of its proper divisors (65763).

113949 is a wasteful number, since it uses less digits than its factorization.

113949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1165 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 113949 is about 337.5633273921. The cubic root of 113949 is about 48.4808441019.

Adding to 113949 its product of digits (972), we get a square (114921 = 339²).

The spelling of 113949 in words is "one hundred thirteen thousand, nine hundred forty-nine".