1345321132 has 12 divisors (see below), whose sum is σ = 2357058760. Its totient is φ = 671875776.

The previous prime is 1345321121. The next prime is 1345321139. The reversal of 1345321132 is 2311235431.

It is a happy number.

It is a super-2 number, since 2×1345321132² = 3619777896411522848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1345321097 and 1345321106.

It is not an unprimeable number, because it can be changed into a prime (1345321139) 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, 192333 + ... + 199204.

Almost surely, 2^1345321132 is an apocalyptic number.

It is an amenable number.

1345321132 is a deficient number, since it is larger than the sum of its proper divisors (1011737628).

1345321132 is a wasteful number, since it uses less digits than its factorization.

1345321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392400 (or 392398 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 1345321132 is about 36678.6195487235. The cubic root of 1345321132 is about 1103.9311496568.

Adding to 1345321132 its reverse (2311235431), we get a palindrome (3656556563).

The spelling of 1345321132 in words is "one billion, three hundred forty-five million, three hundred twenty-one thousand, one hundred thirty-two".