1045533155 has 16 divisors (see below), whose sum is σ = 1272015360. Its totient is φ = 824879328.

The previous prime is 1045533127. The next prime is 1045533157. The reversal of 1045533155 is 5513355401.

It is a cyclic number.

It is not a de Polignac number, because 1045533155 - 2⁶ = 1045533091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045533157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271574 + ... + 275396.

It is an arithmetic number, because the mean of its divisors is an integer number (79500960).

Almost surely, 2^1045533155 is an apocalyptic number.

1045533155 is a deficient number, since it is larger than the sum of its proper divisors (226482205).

1045533155 is an equidigital number, since it uses as much as digits as its factorization.

1045533155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 1045533155 is about 32334.7051169483. The cubic root of 1045533155 is about 1014.9530113250.

Adding to 1045533155 its reverse (5513355401), we get a palindrome (6558888556).

The spelling of 1045533155 in words is "one billion, forty-five million, five hundred thirty-three thousand, one hundred fifty-five".