133031215445 has 4 divisors (see below), whose sum is σ = 159637458540. Its totient is φ = 106424972352.

The previous prime is 133031215411. The next prime is 133031215453. The reversal of 133031215445 is 544512130331.

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 97810060516 + 35221154929 = 312746^2 + 187673^2 .

It is a cyclic number.

It is not a de Polignac number, because 133031215445 - 2¹² = 133031211349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13303121540 + ... + 13303121549.

It is an arithmetic number, because the mean of its divisors is an integer number (39909364635).

Almost surely, 2^133031215445 is an apocalyptic number.

It is an amenable number.

133031215445 is a deficient number, since it is larger than the sum of its proper divisors (26606243095).

133031215445 is an equidigital number, since it uses as much as digits as its factorization.

133031215445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26606243094.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 133031215445 its reverse (544512130331), we get a palindrome (677543345776).

The spelling of 133031215445 in words is "one hundred thirty-three billion, thirty-one million, two hundred fifteen thousand, four hundred forty-five".