1540163433 has 16 divisors (see below), whose sum is σ = 2181453120. Its totient is φ = 963219456.

The previous prime is 1540163419. The next prime is 1540163437. The reversal of 1540163433 is 3343610451.

It is a de Polignac number, because none of the positive numbers 2^k-1540163433 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1540163433.

It is not an unprimeable number, because it can be changed into a prime (1540163437) 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, 33528 + ... + 64841.

It is an arithmetic number, because the mean of its divisors is an integer number (136340820).

Almost surely, 2^1540163433 is an apocalyptic number.

It is an amenable number.

1540163433 is a deficient number, since it is larger than the sum of its proper divisors (641289687).

1540163433 is a wasteful number, since it uses less digits than its factorization.

1540163433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98696.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1540163433 is about 39244.9160146891. The cubic root of 1540163433 is about 1154.8412000339.

Adding to 1540163433 its reverse (3343610451), we get a palindrome (4883773884).

The spelling of 1540163433 in words is "one billion, five hundred forty million, one hundred sixty-three thousand, four hundred thirty-three".