1345031300 has 18 divisors (see below), whose sum is σ = 2918718138. Its totient is φ = 538012480.

The previous prime is 1345031293. The next prime is 1345031309. The reversal of 1345031300 is 31305431.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21381376 + 1323649924 = 4624^2 + 36382^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1345031309) 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 in 5 ways as a sum of consecutive naturals, for example, 6725057 + ... + 6725256.

Almost surely, 2^1345031300 is an apocalyptic number.

1345031300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345031300 is an abundant number, since it is smaller than the sum of its proper divisors (1573686838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345031300 is a wasteful number, since it uses less digits than its factorization.

1345031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13450327 (or 13450320 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1345031300 is about 36674.6683693254. The cubic root of 1345031300 is about 1103.8518680774.

Adding to 1345031300 its reverse (31305431), we get a palindrome (1376336731).

The spelling of 1345031300 in words is "one billion, three hundred forty-five million, thirty-one thousand, three hundred".