15104150421 has 4 divisors (see below), whose sum is σ = 20138867232. Its totient is φ = 10069433612.

The previous prime is 15104150419. The next prime is 15104150431. The reversal of 15104150421 is 12405140151.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12405140151 = 3 ⋅4135046717.

It is a cyclic number.

It is not a de Polignac number, because 15104150421 - 2¹ = 15104150419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15104150391 and 15104150400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15104150431) 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, 2517358401 + ... + 2517358406.

It is an arithmetic number, because the mean of its divisors is an integer number (5034716808).

Almost surely, 2^15104150421 is an apocalyptic number.

It is an amenable number.

15104150421 is a deficient number, since it is larger than the sum of its proper divisors (5034716811).

15104150421 is an equidigital number, since it uses as much as digits as its factorization.

15104150421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5034716810.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 15104150421 its reverse (12405140151), we get a palindrome (27509290572).

The spelling of 15104150421 in words is "fifteen billion, one hundred four million, one hundred fifty thousand, four hundred twenty-one".