15420443134 has 8 divisors (see below), whose sum is σ = 23390560080. Its totient is φ = 7623589776.

The previous prime is 15420443107. The next prime is 15420443167. The reversal of 15420443134 is 43134402451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 15420443096 and 15420443105.

It is a congruent number.

It is an unprimeable number.

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, 43315674 + ... + 43316029.

It is an arithmetic number, because the mean of its divisors is an integer number (2923820010).

Almost surely, 2^15420443134 is an apocalyptic number.

15420443134 is a deficient number, since it is larger than the sum of its proper divisors (7970116946).

15420443134 is an equidigital number, since it uses as much as digits as its factorization.

15420443134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86631794.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 15420443134 its reverse (43134402451), we get a palindrome (58554845585).

The spelling of 15420443134 in words is "fifteen billion, four hundred twenty million, four hundred forty-three thousand, one hundred thirty-four".