1540113365 has 12 divisors (see below), whose sum is σ = 2149872876. Its totient is φ = 1056077568.

The previous prime is 1540113361. The next prime is 1540113391. The reversal of 1540113365 is 5633110451.

It can be written as a sum of positive squares in 2 ways, for example, as 173554276 + 1366559089 = 13174^2 + 36967^2 .

It is not a de Polignac number, because 1540113365 - 2² = 1540113361 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540113361) 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 11 ways as a sum of consecutive naturals, for example, 3142844 + ... + 3143333.

It is an arithmetic number, because the mean of its divisors is an integer number (179156073).

Almost surely, 2^1540113365 is an apocalyptic number.

It is an amenable number.

1540113365 is a deficient number, since it is larger than the sum of its proper divisors (609759511).

1540113365 is an equidigital number, since it uses as much as digits as its factorization.

1540113365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6286196 (or 6286189 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1540113365 is about 39244.2781179626. The cubic root of 1540113365 is about 1154.8286859473.

The spelling of 1540113365 in words is "one billion, five hundred forty million, one hundred thirteen thousand, three hundred sixty-five".