1343862505 has 4 divisors (see below), whose sum is σ = 1612635012. Its totient is φ = 1075090000.

The previous prime is 1343862503. The next prime is 1343862517. The reversal of 1343862505 is 5052683431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5052683431 = 199 ⋅25390369.

It can be written as a sum of positive squares in 2 ways, for example, as 893531664 + 450330841 = 29892^2 + 21221^2 .

It is not a de Polignac number, because 1343862505 - 2¹ = 1343862503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1343862503) 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, 134386246 + ... + 134386255.

It is an arithmetic number, because the mean of its divisors is an integer number (403158753).

Almost surely, 2^1343862505 is an apocalyptic number.

It is an amenable number.

1343862505 is a deficient number, since it is larger than the sum of its proper divisors (268772507).

1343862505 is an equidigital number, since it uses as much as digits as its factorization.

1343862505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268772506.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1343862505 is about 36658.7302698825. The cubic root of 1343862505 is about 1103.5320365032.

The spelling of 1343862505 in words is "one billion, three hundred forty-three million, eight hundred sixty-two thousand, five hundred five".