1533764745 has 12 divisors (see below), whose sum is σ = 2658525636. Its totient is φ = 818007840.

The previous prime is 1533764741. The next prime is 1533764747. The reversal of 1533764745 is 5474673351.

1533764745 is a `hidden beast` number, since 1 + 533 + 76 + 4 + 7 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 932141961 + 601622784 = 30531^2 + 24528^2 .

It is not a de Polignac number, because 1533764745 - 2² = 1533764741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 34083661 = 1533764745 / (1 + 5 + 3 + 3 + 7 + 6 + 4 + 7 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1533764745.

It is not an unprimeable number, because it can be changed into a prime (1533764741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17041786 + ... + 17041875.

It is an arithmetic number, because the mean of its divisors is an integer number (221543803).

Almost surely, 2^1533764745 is an apocalyptic number.

1533764745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1533764745 is a deficient number, since it is larger than the sum of its proper divisors (1124760891).

1533764745 is a wasteful number, since it uses less digits than its factorization.

1533764745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34083672 (or 34083669 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 45.

The square root of 1533764745 is about 39163.3086574666. The cubic root of 1533764745 is about 1153.2396978029.

The spelling of 1533764745 in words is "one billion, five hundred thirty-three million, seven hundred sixty-four thousand, seven hundred forty-five".