1151554455 has 32 divisors (see below), whose sum is σ = 2136222720. Its totient is φ = 587458080.

The previous prime is 1151554421. The next prime is 1151554457. The reversal of 1151554455 is 5544551511.

1151554455 is a `hidden beast` number, since 1 + 1 + 51 + 554 + 4 + 55 = 666.

It is not a de Polignac number, because 1151554455 - 2⁸ = 1151554199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151554457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182331 + ... + 188540.

It is an arithmetic number, because the mean of its divisors is an integer number (66756960).

Almost surely, 2^1151554455 is an apocalyptic number.

1151554455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1151554455 is a deficient number, since it is larger than the sum of its proper divisors (984668265).

1151554455 is a wasteful number, since it uses less digits than its factorization.

1151554455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370908 (or 370902 counting only the distinct ones).

The product of its digits is 50000, while the sum is 36.

The square root of 1151554455 is about 33934.5613644850. The cubic root of 1151554455 is about 1048.1613946291.

The spelling of 1151554455 in words is "one billion, one hundred fifty-one million, five hundred fifty-four thousand, four hundred fifty-five".