1348505761 has 4 divisors (see below), whose sum is σ = 1348922800. Its totient is φ = 1348088724.

The previous prime is 1348505759. The next prime is 1348505827. The reversal of 1348505761 is 1675058431.

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 an emirpimes, since its reverse is a distinct semiprime: 1675058431 = 563 ⋅2975237.

It is a cyclic number.

It is not a de Polignac number, because 1348505761 - 2¹ = 1348505759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1348500761) 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, 203631 + ... + 210148.

It is an arithmetic number, because the mean of its divisors is an integer number (337230700).

Almost surely, 2^1348505761 is an apocalyptic number.

It is an amenable number.

1348505761 is a deficient number, since it is larger than the sum of its proper divisors (417039).

1348505761 is an equidigital number, since it uses as much as digits as its factorization.

1348505761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417038.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 1348505761 is about 36722.0064947437. The cubic root of 1348505761 is about 1104.8015343488.

The spelling of 1348505761 in words is "one billion, three hundred forty-eight million, five hundred five thousand, seven hundred sixty-one".