1343156245 has 4 divisors (see below), whose sum is σ = 1611787500. Its totient is φ = 1074524992.

The previous prime is 1343156237. The next prime is 1343156249. The reversal of 1343156245 is 5426513431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5426513431 = 409 ⋅13267759.

It can be written as a sum of positive squares in 2 ways, for example, as 988850916 + 354305329 = 31446^2 + 18823^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343156245 - 2³ = 1343156237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1343156245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343156249) 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, 134315620 + ... + 134315629.

It is an arithmetic number, because the mean of its divisors is an integer number (402946875).

Almost surely, 2^1343156245 is an apocalyptic number.

It is an amenable number.

1343156245 is a deficient number, since it is larger than the sum of its proper divisors (268631255).

1343156245 is an equidigital number, since it uses as much as digits as its factorization.

1343156245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268631254.

The product of its digits is 43200, while the sum is 34.

The square root of 1343156245 is about 36649.0961007226. The cubic root of 1343156245 is about 1103.3386841064.

Adding to 1343156245 its reverse (5426513431), we get a palindrome (6769669676).

The spelling of 1343156245 in words is "one billion, three hundred forty-three million, one hundred fifty-six thousand, two hundred forty-five".