1343220136 has 8 divisors (see below), whose sum is σ = 2518537770. Its totient is φ = 671610064.

The previous prime is 1343220127. The next prime is 1343220157. The reversal of 1343220136 is 6310223431.

It can be written as a sum of positive squares in only one way, i.e., 728676036 + 614544100 = 26994^2 + 24790^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1343220136.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83951251 + ... + 83951266.

Almost surely, 2^1343220136 is an apocalyptic number.

It is an amenable number.

1343220136 is a deficient number, since it is larger than the sum of its proper divisors (1175317634).

1343220136 is a wasteful number, since it uses less digits than its factorization.

1343220136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167902523 (or 167902519 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1343220136 is about 36649.9677489626. The cubic root of 1343220136 is about 1103.3561782970.

Adding to 1343220136 its reverse (6310223431), we get a palindrome (7653443567).

The spelling of 1343220136 in words is "one billion, three hundred forty-three million, two hundred twenty thousand, one hundred thirty-six".