15452442245243 has 4 divisors (see below), whose sum is σ = 15452466407928. Its totient is φ = 15452418082560.

The previous prime is 15452442245239. The next prime is 15452442245293. The reversal of 15452442245243 is 34254224425451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15452442245243 - 2² = 15452442245239 is a prime.

It is a super-2 number, since 2×15452442245243² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15452442245213) 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, 11095238 + ... + 12410043.

It is an arithmetic number, because the mean of its divisors is an integer number (3863116601982).

Almost surely, 2^{15452442245243} is an apocalyptic number.

15452442245243 is a deficient number, since it is larger than the sum of its proper divisors (24162685).

15452442245243 is an equidigital number, since it uses as much as digits as its factorization.

15452442245243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24162684.

The product of its digits is 6144000, while the sum is 47.

The spelling of 15452442245243 in words is "fifteen trillion, four hundred fifty-two billion, four hundred forty-two million, two hundred forty-five thousand, two hundred forty-three".