1115554201 has 16 divisors (see below), whose sum is σ = 1195084800. Its totient is φ = 1038214800.

The previous prime is 1115554151. The next prime is 1115554217. The reversal of 1115554201 is 1024555111.

It is a cyclic number.

It is not a de Polignac number, because 1115554201 - 2¹⁹ = 1115029913 is a prime.

It is a super-2 number, since 2×1115554201² = 2488922350737496802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1115551201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418210 + ... + 420868.

It is an arithmetic number, because the mean of its divisors is an integer number (74692800).

Almost surely, 2^1115554201 is an apocalyptic number.

It is an amenable number.

1115554201 is a deficient number, since it is larger than the sum of its proper divisors (79530599).

1115554201 is a wasteful number, since it uses less digits than its factorization.

1115554201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 1115554201 is about 33399.9131885099. The cubic root of 1115554201 is about 1037.1229038607.

It can be divided in two parts, 11155 and 54201, that added together give a palindrome (65356).

The spelling of 1115554201 in words is "one billion, one hundred fifteen million, five hundred fifty-four thousand, two hundred one".