145013421421313 has 8 divisors (see below), whose sum is σ = 148653998075016. Its totient is φ = 141377781145600.

The previous prime is 145013421421307. The next prime is 145013421421327. The reversal of 145013421421313 is 313124124310541.

It can be written as a sum of positive squares in 4 ways, for example, as 1421324149249 + 143592097272064 = 1192193^2 + 11982992^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145013421421313 - 2⁶ = 145013421421249 is a prime.

It is a super-2 number, since 2×145013421421313² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145013421429313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234035008 + ... + 1234152513.

It is an arithmetic number, because the mean of its divisors is an integer number (18581749759377).

Almost surely, 2^{145013421421313} is an apocalyptic number.

It is an amenable number.

145013421421313 is a deficient number, since it is larger than the sum of its proper divisors (3640576653703).

145013421421313 is a wasteful number, since it uses less digits than its factorization.

145013421421313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468188995.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 145013421421313 its reverse (313124124310541), we get a palindrome (458137545731854).

The spelling of 145013421421313 in words is "one hundred forty-five trillion, thirteen billion, four hundred twenty-one million, four hundred twenty-one thousand, three hundred thirteen".