145131223333 has 8 divisors (see below), whose sum is σ = 145874087840. Its totient is φ = 144388878480.

The previous prime is 145131223331. The next prime is 145131223339. The reversal of 145131223333 is 333322131541.

It is a happy number.

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 145131223333 - 2¹ = 145131223331 is a prime.

It is a super-3 number, since 3×145131223333³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145131223295 and 145131223304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145131223331) 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, 436378 + ... + 693316.

It is an arithmetic number, because the mean of its divisors is an integer number (18234260980).

Almost surely, 2^145131223333 is an apocalyptic number.

It is an amenable number.

145131223333 is a deficient number, since it is larger than the sum of its proper divisors (742864507).

145131223333 is a wasteful number, since it uses less digits than its factorization.

145131223333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259827.

The product of its digits is 19440, while the sum is 31.

Adding to 145131223333 its reverse (333322131541), we get a palindrome (478453354874).

The spelling of 145131223333 in words is "one hundred forty-five billion, one hundred thirty-one million, two hundred twenty-three thousand, three hundred thirty-three".