15241540143 has 4 divisors (see below), whose sum is σ = 20322053528. Its totient is φ = 10161026760.

The previous prime is 15241540117. The next prime is 15241540147. The reversal of 15241540143 is 34104514251.

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

It is not a de Polignac number, because 15241540143 - 2²² = 15237345839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15241540143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15241540147) 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, 2540256688 + ... + 2540256693.

It is an arithmetic number, because the mean of its divisors is an integer number (5080513382).

Almost surely, 2^15241540143 is an apocalyptic number.

15241540143 is a deficient number, since it is larger than the sum of its proper divisors (5080513385).

15241540143 is an equidigital number, since it uses as much as digits as its factorization.

15241540143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080513384.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 15241540143 in words is "fifteen billion, two hundred forty-one million, five hundred forty thousand, one hundred forty-three".