1540345115 has 8 divisors (see below), whose sum is σ = 1861907040. Its totient is φ = 1223280832.

The previous prime is 1540345087. The next prime is 1540345127. The reversal of 1540345115 is 5115430451.

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

It is a cyclic number.

It is not a de Polignac number, because 1540345115 - 2¹⁴ = 1540328731 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123655 + ... + 1125024.

It is an arithmetic number, because the mean of its divisors is an integer number (232738380).

Almost surely, 2^1540345115 is an apocalyptic number.

1540345115 is a deficient number, since it is larger than the sum of its proper divisors (321561925).

1540345115 is a wasteful number, since it uses less digits than its factorization.

1540345115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248821.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1540345115 is about 39247.2306666343. The cubic root of 1540345115 is about 1154.8866076845.

Adding to 1540345115 its reverse (5115430451), we get a palindrome (6655775566).

The spelling of 1540345115 in words is "one billion, five hundred forty million, three hundred forty-five thousand, one hundred fifteen".