1540533514 has 32 divisors (see below), whose sum is σ = 2611937664. Its totient is φ = 676125120.

The previous prime is 1540533503. The next prime is 1540533541. The reversal of 1540533514 is 4153350451.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96009 + ... + 110899.

It is an arithmetic number, because the mean of its divisors is an integer number (81623052).

Almost surely, 2^1540533514 is an apocalyptic number.

1540533514 is a deficient number, since it is larger than the sum of its proper divisors (1071404150).

1540533514 is a wasteful number, since it uses less digits than its factorization.

1540533514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15102.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1540533514 is about 39249.6307498555. The cubic root of 1540533514 is about 1154.9336903393.

Adding to 1540533514 its reverse (4153350451), we get a palindrome (5693883965).

The spelling of 1540533514 in words is "one billion, five hundred forty million, five hundred thirty-three thousand, five hundred fourteen".