1533764345 has 4 divisors (see below), whose sum is σ = 1840517220. Its totient is φ = 1227011472.

The previous prime is 1533764333. The next prime is 1533764347. The reversal of 1533764345 is 5434673351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5434673351 = 24251 ⋅224101.

It can be written as a sum of positive squares in 2 ways, for example, as 418939024 + 1114825321 = 20468^2 + 33389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1533764345 - 2¹⁴ = 1533747961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1533764347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153376430 + ... + 153376439.

It is an arithmetic number, because the mean of its divisors is an integer number (460129305).

Almost surely, 2^1533764345 is an apocalyptic number.

It is an amenable number.

1533764345 is a deficient number, since it is larger than the sum of its proper divisors (306752875).

1533764345 is an equidigital number, since it uses as much as digits as its factorization.

1533764345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306752874.

The product of its digits is 453600, while the sum is 41.

The square root of 1533764345 is about 39163.3035506455. The cubic root of 1533764345 is about 1153.2395975494.

The spelling of 1533764345 in words is "one billion, five hundred thirty-three million, seven hundred sixty-four thousand, three hundred forty-five".