15140021241 has 4 divisors (see below), whose sum is σ = 20186694992. Its totient is φ = 10093347492.

The previous prime is 15140021203. The next prime is 15140021249. The reversal of 15140021241 is 14212004151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 15140021241 - 2²⁶ = 15072912377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15140021249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523336871 + ... + 2523336876.

It is an arithmetic number, because the mean of its divisors is an integer number (5046673748).

Almost surely, 2^15140021241 is an apocalyptic number.

It is an amenable number.

15140021241 is a deficient number, since it is larger than the sum of its proper divisors (5046673751).

15140021241 is an equidigital number, since it uses as much as digits as its factorization.

15140021241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5046673750.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 15140021241 its reverse (14212004151), we get a palindrome (29352025392).

The spelling of 15140021241 in words is "fifteen billion, one hundred forty million, twenty-one thousand, two hundred forty-one".