1345440646145 has 16 divisors (see below), whose sum is σ = 1637395541760. Its totient is φ = 1061148501504.

The previous prime is 1345440646141. The next prime is 1345440646171. The reversal of 1345440646145 is 5416460445431.

It is a cyclic number.

It is not a de Polignac number, because 1345440646145 - 2² = 1345440646141 is a prime.

It is a super-2 number, since 2×1345440646145² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1345440646145.

It is not an unprimeable number, because it can be changed into a prime (1345440646141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2264759 + ... + 2796428.

It is an arithmetic number, because the mean of its divisors is an integer number (102337221360).

Almost surely, 2^{1345440646145} is an apocalyptic number.

It is an amenable number.

1345440646145 is a deficient number, since it is larger than the sum of its proper divisors (291954895615).

1345440646145 is an equidigital number, since it uses as much as digits as its factorization.

1345440646145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5061944.

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 1345440646145 in words is "one trillion, three hundred forty-five billion, four hundred forty million, six hundred forty-six thousand, one hundred forty-five".