113201145 has 80 divisors (see below), whose sum is σ = 218845440. Its totient is φ = 55800576.

The previous prime is 113201141. The next prime is 113201149. The reversal of 113201145 is 541102311.

It is an interprime number because it is at equal distance from previous prime (113201141) and next prime (113201149).

It is not a de Polignac number, because 113201145 - 2² = 113201141 is a prime.

It is a super-2 number, since 2×113201145² = 25628998458622050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113201141) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 361509 + ... + 361821.

It is an arithmetic number, because the mean of its divisors is an integer number (2735568).

Almost surely, 2^113201145 is an apocalyptic number.

113201145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113201145 is a deficient number, since it is larger than the sum of its proper divisors (105644295).

113201145 is a wasteful number, since it uses less digits than its factorization.

113201145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 113201145 is about 10639.6026711527. The cubic root of 113201145 is about 483.7455020314.

Adding to 113201145 its reverse (541102311), we get a palindrome (654303456).

The spelling of 113201145 in words is "one hundred thirteen million, two hundred one thousand, one hundred forty-five".