145214221244333 has 4 divisors (see below), whose sum is σ = 145314299964768. Its totient is φ = 145114142523900.

The previous prime is 145214221244327. The next prime is 145214221244353. The reversal of 145214221244333 is 333442122412541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145214221244333 - 2³⁴ = 145197041375149 is a prime.

It is a super-2 number, since 2×145214221244333² (a number of 29 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 (145214221244303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50039358041 + ... + 50039360942.

It is an arithmetic number, because the mean of its divisors is an integer number (36328574991192).

Almost surely, 2^{145214221244333} is an apocalyptic number.

It is an amenable number.

145214221244333 is a deficient number, since it is larger than the sum of its proper divisors (100078720435).

145214221244333 is a wasteful number, since it uses less digits than its factorization.

145214221244333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100078720434.

The product of its digits is 552960, while the sum is 41.

Adding to 145214221244333 its reverse (333442122412541), we get a palindrome (478656343656874).

The spelling of 145214221244333 in words is "one hundred forty-five trillion, two hundred fourteen billion, two hundred twenty-one million, two hundred forty-four thousand, three hundred thirty-three".