115243541 has 16 divisors (see below), whose sum is σ = 136128000. Its totient is φ = 97506864.

The previous prime is 115243537. The next prime is 115243559. The reversal of 115243541 is 145342511.

It is not a de Polignac number, because 115243541 - 2² = 115243537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 115243541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115243511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24971 + ... + 29223.

It is an arithmetic number, because the mean of its divisors is an integer number (8508000).

Almost surely, 2^115243541 is an apocalyptic number.

It is an amenable number.

115243541 is a deficient number, since it is larger than the sum of its proper divisors (20884459).

115243541 is an frugal number, since it uses more digits than its factorization.

115243541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353 (or 4339 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 115243541 is about 10735.1544469560. The cubic root of 115243541 is about 486.6374540439.

The spelling of 115243541 in words is "one hundred fifteen million, two hundred forty-three thousand, five hundred forty-one".