15401342545 has 8 divisors (see below), whose sum is σ = 18496656360. Its totient is φ = 12311043840.

The previous prime is 15401342521. The next prime is 15401342549. The reversal of 15401342545 is 54524310451.

It can be written as a sum of positive squares in 4 ways, for example, as 5200140544 + 10201202001 = 72112^2 + 101001^2 .

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

It is not a de Polignac number, because 15401342545 - 2⁵ = 15401342513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15401342545.

It is not an unprimeable number, because it can be changed into a prime (15401342549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1247016 + ... + 1259305.

It is an arithmetic number, because the mean of its divisors is an integer number (2312082045).

Almost surely, 2^15401342545 is an apocalyptic number.

It is an amenable number.

15401342545 is a deficient number, since it is larger than the sum of its proper divisors (3095313815).

15401342545 is a wasteful number, since it uses less digits than its factorization.

15401342545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507555.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 15401342545 its reverse (54524310451), we get a palindrome (69925652996).

The spelling of 15401342545 in words is "fifteen billion, four hundred one million, three hundred forty-two thousand, five hundred forty-five".