1155241 has 8 divisors (see below), whose sum is σ = 1197504. Its totient is φ = 1113840.

The previous prime is 1155239. The next prime is 1155247. The reversal of 1155241 is 1425511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1155241 - 2¹ = 1155239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3610 + ... + 3916.

It is an arithmetic number, because the mean of its divisors is an integer number (149688).

2^1155241 is an apocalyptic number.

It is an amenable number.

1155241 is a deficient number, since it is larger than the sum of its proper divisors (42263).

1155241 is an equidigital number, since it uses as much as digits as its factorization.

1155241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431.

The product of its digits is 200, while the sum is 19.

The square root of 1155241 is about 1074.8213805093. The cubic root of 1155241 is about 104.9278718548.

It can be divided in two parts, 115 and 5241, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 1155241 in words is "one million, one hundred fifty-five thousand, two hundred forty-one".