1540141313 has 4 divisors (see below), whose sum is σ = 1540245168. Its totient is φ = 1540037460.

The previous prime is 1540141307. The next prime is 1540141321. The reversal of 1540141313 is 3131410451.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1540141313 - 2¹⁰ = 1540140289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540141913) 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, 25043 + ... + 60888.

It is an arithmetic number, because the mean of its divisors is an integer number (385061292).

Almost surely, 2^1540141313 is an apocalyptic number.

It is an amenable number.

1540141313 is a deficient number, since it is larger than the sum of its proper divisors (103855).

1540141313 is an equidigital number, since it uses as much as digits as its factorization.

1540141313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103854.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1540141313 is about 39244.6341937341. The cubic root of 1540141313 is about 1154.8356713545.

Adding to 1540141313 its reverse (3131410451), we get a palindrome (4671551764).

The spelling of 1540141313 in words is "one billion, five hundred forty million, one hundred forty-one thousand, three hundred thirteen".