15321452134 has 4 divisors (see below), whose sum is σ = 22982178204. Its totient is φ = 7660726066.

The previous prime is 15321452117. The next prime is 15321452177. The reversal of 15321452134 is 43125412351.

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

It is a junction number, because it is equal to n+sod(n) for n = 15321452096 and 15321452105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3830363032 + ... + 3830363035.

It is an arithmetic number, because the mean of its divisors is an integer number (5745544551).

Almost surely, 2^15321452134 is an apocalyptic number.

15321452134 is a deficient number, since it is larger than the sum of its proper divisors (7660726070).

15321452134 is an equidigital number, since it uses as much as digits as its factorization.

15321452134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660726069.

The product of its digits is 14400, while the sum is 31.

Adding to 15321452134 its reverse (43125412351), we get a palindrome (58446864485).

The spelling of 15321452134 in words is "fifteen billion, three hundred twenty-one million, four hundred fifty-two thousand, one hundred thirty-four".