15133522493 has 4 divisors (see below), whose sum is σ = 15136210908. Its totient is φ = 15130834080.

The previous prime is 15133522489. The next prime is 15133522499. The reversal of 15133522493 is 39422533151.

15133522493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39422533151 = 1163 ⋅33897277.

It can be written as a sum of positive squares in 2 ways, for example, as 9078659524 + 6054862969 = 95282^2 + 77813^2 .

It is a cyclic number.

It is not a de Polignac number, because 15133522493 - 2² = 15133522489 is a prime.

It is a super-2 number, since 2×15133522493² (a number of 21 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 (15133522499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335746 + ... + 1347027.

It is an arithmetic number, because the mean of its divisors is an integer number (3784052727).

Almost surely, 2^15133522493 is an apocalyptic number.

It is an amenable number.

15133522493 is a deficient number, since it is larger than the sum of its proper divisors (2688415).

15133522493 is an equidigital number, since it uses as much as digits as its factorization.

15133522493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688414.

The product of its digits is 97200, while the sum is 38.

The spelling of 15133522493 in words is "fifteen billion, one hundred thirty-three million, five hundred twenty-two thousand, four hundred ninety-three".