1540540514 has 8 divisors (see below), whose sum is σ = 2345300688. Its totient is φ = 758773620.

The previous prime is 1540540511. The next prime is 1540540541. The reversal of 1540540514 is 4150450451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1540540511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5748152 + ... + 5748419.

It is an arithmetic number, because the mean of its divisors is an integer number (293162586).

Almost surely, 2^1540540514 is an apocalyptic number.

1540540514 is a deficient number, since it is larger than the sum of its proper divisors (804760174).

1540540514 is a wasteful number, since it uses less digits than its factorization.

1540540514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11496640.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 1540540514 is about 39249.7199225676. The cubic root of 1540540514 is about 1154.9354396302.

Adding to 1540540514 its reverse (4150450451), we get a palindrome (5690990965).

The spelling of 1540540514 in words is "one billion, five hundred forty million, five hundred forty thousand, five hundred fourteen".