1515200343493 has 2 divisors, whose sum is σ = 1515200343494. Its totient is φ = 1515200343492.

The previous prime is 1515200343451. The next prime is 1515200343533. The reversal of 1515200343493 is 3943430025151.

It is an a-pointer prime, because the next prime (1515200343533) can be obtained adding 1515200343493 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 836855380804 + 678344962689 = 914798^2 + 823617^2 .

It is an emirp because it is prime and its reverse (3943430025151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1515200343493 - 2²⁵ = 1515166789061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1515200343893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757600171746 + 757600171747.

It is an arithmetic number, because the mean of its divisors is an integer number (757600171747).

Almost surely, 2^{1515200343493} is an apocalyptic number.

It is an amenable number.

1515200343493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1515200343493 is an equidigital number, since it uses as much as digits as its factorization.

1515200343493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 1515200343493 in words is "one trillion, five hundred fifteen billion, two hundred million, three hundred forty-three thousand, four hundred ninety-three".