1540163434 has 16 divisors (see below), whose sum is σ = 2321444736. Its totient is φ = 766357200.

The previous prime is 1540163419. The next prime is 1540163437. The reversal of 1540163434 is 4343610451.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1540163396 and 1540163405.

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 7 ways as a sum of consecutive naturals, for example, 469219 + ... + 472489.

It is an arithmetic number, because the mean of its divisors is an integer number (145090296).

Almost surely, 2^1540163434 is an apocalyptic number.

1540163434 is a deficient number, since it is larger than the sum of its proper divisors (781281302).

1540163434 is a wasteful number, since it uses less digits than its factorization.

1540163434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1540163434 is about 39244.9160274296. The cubic root of 1540163434 is about 1154.8412002838.

Adding to 1540163434 its reverse (4343610451), we get a palindrome (5883773885).

The spelling of 1540163434 in words is "one billion, five hundred forty million, one hundred sixty-three thousand, four hundred thirty-four".