1345141142440 has 32 divisors (see below), whose sum is σ = 3029665475880. Its totient is φ = 537505718272.

The previous prime is 1345141142399. The next prime is 1345141142447. The reversal of 1345141142440 is 442411415431.

It can be written as a sum of positive squares in 4 ways, for example, as 1299677521156 + 45463621284 = 1140034^2 + 213222^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1345141142396 and 1345141142405.

It is not an unprimeable number, because it can be changed into a prime (1345141142447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17171017 + ... + 17249176.

Almost surely, 2^{1345141142440} is an apocalyptic number.

1345141142440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345141142440 is an abundant number, since it is smaller than the sum of its proper divisors (1684524333440).

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

1345141142440 is a wasteful number, since it uses less digits than its factorization.

1345141142440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34421181 (or 34421177 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

Adding to 1345141142440 its reverse (442411415431), we get a palindrome (1787552557871).

The spelling of 1345141142440 in words is "one trillion, three hundred forty-five billion, one hundred forty-one million, one hundred forty-two thousand, four hundred forty".