15313450133 has 4 divisors (see below), whose sum is σ = 15315793548. Its totient is φ = 15311106720.

The previous prime is 15313450129. The next prime is 15313450171. The reversal of 15313450133 is 33105431351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33105431351 = 71 ⋅466273681.

It can be written as a sum of positive squares in 2 ways, for example, as 11210150884 + 4103299249 = 105878^2 + 64057^2 .

It is a cyclic number.

It is not a de Polignac number, because 15313450133 - 2² = 15313450129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15313450096 and 15313450105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15333450133) 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, 1161878 + ... + 1174983.

It is an arithmetic number, because the mean of its divisors is an integer number (3828948387).

Almost surely, 2^15313450133 is an apocalyptic number.

It is an amenable number.

15313450133 is a deficient number, since it is larger than the sum of its proper divisors (2343415).

15313450133 is an equidigital number, since it uses as much as digits as its factorization.

15313450133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343414.

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 15313450133 its reverse (33105431351), we get a palindrome (48418881484).

The spelling of 15313450133 in words is "fifteen billion, three hundred thirteen million, four hundred fifty thousand, one hundred thirty-three".