1155433545 has 32 divisors (see below), whose sum is σ = 2347549440. Its totient is φ = 528197760.

The previous prime is 1155433541. The next prime is 1155433547. The reversal of 1155433545 is 5453345511.

It is not a de Polignac number, because 1155433545 - 2² = 1155433541 is a prime.

It is a super-2 number, since 2×1155433545² = 2670053353822534050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1155433541) 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 31 ways as a sum of consecutive naturals, for example, 610396 + ... + 612285.

It is an arithmetic number, because the mean of its divisors is an integer number (73360920).

Almost surely, 2^1155433545 is an apocalyptic number.

1155433545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1155433545 is an abundant number, since it is smaller than the sum of its proper divisors (1192115895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155433545 is a wasteful number, since it uses less digits than its factorization.

1155433545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222702 (or 1222696 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 1155433545 is about 33991.6687586826. The cubic root of 1155433545 is about 1049.3370100351.

The spelling of 1155433545 in words is "one billion, one hundred fifty-five million, four hundred thirty-three thousand, five hundred forty-five".