1342450454509 has 4 divisors (see below), whose sum is σ = 1342454289660. Its totient is φ = 1342446619360.

The previous prime is 1342450454453. The next prime is 1342450454531. The reversal of 1342450454509 is 9054540542431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1120204209609 + 222246244900 = 1058397^2 + 471430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342450454509 - 2³¹ = 1340302970861 is a prime.

It is a super-2 number, since 2×1342450454509² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342450424509) 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 3 ways as a sum of consecutive naturals, for example, 1333144 + ... + 2112385.

It is an arithmetic number, because the mean of its divisors is an integer number (335613572415).

Almost surely, 2^{1342450454509} is an apocalyptic number.

It is an amenable number.

1342450454509 is a deficient number, since it is larger than the sum of its proper divisors (3835151).

1342450454509 is an equidigital number, since it uses as much as digits as its factorization.

1342450454509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835150.

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 1342450454509 in words is "one trillion, three hundred forty-two billion, four hundred fifty million, four hundred fifty-four thousand, five hundred nine".