1345154345421 has 16 divisors (see below), whose sum is σ = 1824611195520. Its totient is φ = 881314237440.

The previous prime is 1345154345419. The next prime is 1345154345453. The reversal of 1345154345421 is 1245434515431.

It is not a de Polignac number, because 1345154345421 - 2¹ = 1345154345419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345154345401) 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, 10021636 + ... + 10154973.

It is an arithmetic number, because the mean of its divisors is an integer number (114038199720).

Almost surely, 2^{1345154345421} is an apocalyptic number.

It is an amenable number.

1345154345421 is a deficient number, since it is larger than the sum of its proper divisors (479456850099).

1345154345421 is a wasteful number, since it uses less digits than its factorization.

1345154345421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20176996.

The product of its digits is 576000, while the sum is 42.

The spelling of 1345154345421 in words is "one trillion, three hundred forty-five billion, one hundred fifty-four million, three hundred forty-five thousand, four hundred twenty-one".