1345247236 has 6 divisors (see below), whose sum is σ = 2354182670. Its totient is φ = 672623616.

The previous prime is 1345247231. The next prime is 1345247237. The reversal of 1345247236 is 6327425431.

It can be written as a sum of positive squares in only one way, i.e., 1301766400 + 43480836 = 36080^2 + 6594^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1345247195 and 1345247204.

It is not an unprimeable number, because it can be changed into a prime (1345247231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168155901 + ... + 168155908.

Almost surely, 2^1345247236 is an apocalyptic number.

It is an amenable number.

1345247236 is a deficient number, since it is larger than the sum of its proper divisors (1008935434).

1345247236 is a wasteful number, since it uses less digits than its factorization.

1345247236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336311813 (or 336311811 counting only the distinct ones).

The product of its digits is 120960, while the sum is 37.

The square root of 1345247236 is about 36677.6121905448. The cubic root of 1345247236 is about 1103.9109369884.

The spelling of 1345247236 in words is "one billion, three hundred forty-five million, two hundred forty-seven thousand, two hundred thirty-six".