113181349 has 6 divisors (see below), whose sum is σ = 114331910. Its totient is φ = 112032936.

The previous prime is 113181329. The next prime is 113181371. The reversal of 113181349 is 943181311.

It can be written as a sum of positive squares in only one way, i.e., 103836100 + 9345249 = 10190^2 + 3057^2 .

It is not a de Polignac number, because 113181349 - 2⁷ = 113181221 is a prime.

It is a super-2 number, since 2×113181349² = 25620035522919602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113181349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113181319) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110562 + ... + 111580.

Almost surely, 2^113181349 is an apocalyptic number.

It is an amenable number.

113181349 is a deficient number, since it is larger than the sum of its proper divisors (1150561).

113181349 is an frugal number, since it uses more digits than its factorization.

113181349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147 (or 1128 counting only the distinct ones).

The product of its digits is 2592, while the sum is 31.

The square root of 113181349 is about 10638.6723325799. The cubic root of 113181349 is about 483.7173021275.

The spelling of 113181349 in words is "one hundred thirteen million, one hundred eighty-one thousand, three hundred forty-nine".