1155201245 has 8 divisors (see below), whose sum is σ = 1512263520. Its totient is φ = 840146320.

The previous prime is 1155201217. The next prime is 1155201251. The reversal of 1155201245 is 5421025511.

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

It is not a de Polignac number, because 1155201245 - 2⁶ = 1155201181 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10501775 + ... + 10501884.

It is an arithmetic number, because the mean of its divisors is an integer number (189032940).

Almost surely, 2^1155201245 is an apocalyptic number.

It is an amenable number.

1155201245 is a deficient number, since it is larger than the sum of its proper divisors (357062275).

1155201245 is a wasteful number, since it uses less digits than its factorization.

1155201245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21003675.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1155201245 is about 33988.2515731539. The cubic root of 1155201245 is about 1049.2666822271.

Adding to 1155201245 its reverse (5421025511), we get a palindrome (6576226756).

The spelling of 1155201245 in words is "one billion, one hundred fifty-five million, two hundred one thousand, two hundred forty-five".