1155020054 has 8 divisors (see below), whose sum is σ = 1742209560. Its totient is φ = 574283536.

The previous prime is 1155020047. The next prime is 1155020077. The reversal of 1155020054 is 4500205511.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1612799 + ... + 1613514.

It is an arithmetic number, because the mean of its divisors is an integer number (217776195).

Almost surely, 2^1155020054 is an apocalyptic number.

1155020054 is a deficient number, since it is larger than the sum of its proper divisors (587189506).

1155020054 is a wasteful number, since it uses less digits than its factorization.

1155020054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226494.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1155020054 is about 33985.5859740567. The cubic root of 1155020054 is about 1049.2118209000.

Adding to 1155020054 its reverse (4500205511), we get a palindrome (5655225565).

The spelling of 1155020054 in words is "one billion, one hundred fifty-five million, twenty thousand, fifty-four".