15345425441 has 4 divisors (see below), whose sum is σ = 15414239232. Its totient is φ = 15276611652.

The previous prime is 15345425401. The next prime is 15345425461. The reversal of 15345425441 is 14452454351.

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: 14452454351 = 19597 ⋅737483.

It is a cyclic number.

It is not a de Polignac number, because 15345425441 - 2¹⁸ = 15345163297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15345425395 and 15345425404.

It is not an unprimeable number, because it can be changed into a prime (15345425401) 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, 34406561 + ... + 34407006.

It is an arithmetic number, because the mean of its divisors is an integer number (3853559808).

Almost surely, 2^15345425441 is an apocalyptic number.

It is an amenable number.

15345425441 is a deficient number, since it is larger than the sum of its proper divisors (68813791).

15345425441 is an equidigital number, since it uses as much as digits as its factorization.

15345425441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68813790.

The product of its digits is 192000, while the sum is 38.

Adding to 15345425441 its reverse (14452454351), we get a palindrome (29797879792).

The spelling of 15345425441 in words is "fifteen billion, three hundred forty-five million, four hundred twenty-five thousand, four hundred forty-one".