1532145909 has 16 divisors (see below), whose sum is σ = 2357368832. Its totient is φ = 867010608.

The previous prime is 1532145871. The next prime is 1532145911. The reversal of 1532145909 is 9095412351.

It is not a de Polignac number, because 1532145909 - 2¹⁶ = 1532080373 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1532145929) 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 15 ways as a sum of consecutive naturals, for example, 352009 + ... + 356334.

It is an arithmetic number, because the mean of its divisors is an integer number (147335552).

Almost surely, 2^1532145909 is an apocalyptic number.

It is an amenable number.

1532145909 is a deficient number, since it is larger than the sum of its proper divisors (825222923).

1532145909 is a wasteful number, since it uses less digits than its factorization.

1532145909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708456.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 1532145909 is about 39142.6354375890. The cubic root of 1532145909 is about 1152.8338200111.

The spelling of 1532145909 in words is "one billion, five hundred thirty-two million, one hundred forty-five thousand, nine hundred nine".