15401432133 has 6 divisors (see below), whose sum is σ = 22246513094. Its totient is φ = 10267621416.

The previous prime is 15401432117. The next prime is 15401432141. The reversal of 15401432133 is 33123410451.

It is a happy number.

15401432133 is a `hidden beast` number, since 1 + 5 + 401 + 43 + 213 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8172521604 + 7228910529 = 90402^2 + 85023^2 .

It is not a de Polignac number, because 15401432133 - 2⁴ = 15401432117 is a prime.

It is a super-2 number, since 2×15401432133² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15401432097 and 15401432106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15401432633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 855635110 + ... + 855635127.

Almost surely, 2^15401432133 is an apocalyptic number.

It is an amenable number.

15401432133 is a deficient number, since it is larger than the sum of its proper divisors (6845080961).

15401432133 is a wasteful number, since it uses less digits than its factorization.

15401432133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711270243 (or 1711270240 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 15401432133 its reverse (33123410451), we get a palindrome (48524842584).

The spelling of 15401432133 in words is "fifteen billion, four hundred one million, four hundred thirty-two thousand, one hundred thirty-three".