1545332013 has 20 divisors (see below), whose sum is σ = 2317988288. Its totient is φ = 1030208220.

The previous prime is 1545331999. The next prime is 1545332029. The reversal of 1545332013 is 3102335451.

1545332013 is a `hidden beast` number, since 1 + 5 + 453 + 3 + 201 + 3 = 666.

1545332013 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 1545332013 - 2⁸ = 1545331757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1545331013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19573 + ... + 58938.

Almost surely, 2^1545332013 is an apocalyptic number.

It is an amenable number.

1545332013 is a deficient number, since it is larger than the sum of its proper divisors (772656275).

1545332013 is an frugal number, since it uses more digits than its factorization.

1545332013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78538 (or 78514 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1545332013 is about 39310.7111739282. The cubic root of 1545332013 is about 1156.1315879010.

Adding to 1545332013 its reverse (3102335451), we get a palindrome (4647667464).

The spelling of 1545332013 in words is "one billion, five hundred forty-five million, three hundred thirty-two thousand, thirteen".