1345052041 has 4 divisors (see below), whose sum is σ = 1345133952. Its totient is φ = 1344970132.

The previous prime is 1345052021. The next prime is 1345052057. The reversal of 1345052041 is 1402505431.

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 1345052041 - 2¹³ = 1345043849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345051997 and 1345052015.

It is not an unprimeable number, because it can be changed into a prime (1345052011) 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, 6865 + ... + 52318.

It is an arithmetic number, because the mean of its divisors is an integer number (336283488).

Almost surely, 2^1345052041 is an apocalyptic number.

It is an amenable number.

1345052041 is a deficient number, since it is larger than the sum of its proper divisors (81911).

1345052041 is an equidigital number, since it uses as much as digits as its factorization.

1345052041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81910.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1345052041 is about 36674.9511383451. The cubic root of 1345052041 is about 1103.8575420157.

Adding to 1345052041 its reverse (1402505431), we get a palindrome (2747557472).

The spelling of 1345052041 in words is "one billion, three hundred forty-five million, fifty-two thousand, forty-one".