15225231133 has 32 divisors (see below), whose sum is σ = 18490816512. Its totient is φ = 12253982400.

The previous prime is 15225231079. The next prime is 15225231137. The reversal of 15225231133 is 33113252251.

It is a cyclic number.

It is not a de Polignac number, because 15225231133 - 2⁹ = 15225230621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15225231137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6313698 + ... + 6316108.

It is an arithmetic number, because the mean of its divisors is an integer number (577838016).

Almost surely, 2^15225231133 is an apocalyptic number.

It is an amenable number.

15225231133 is a deficient number, since it is larger than the sum of its proper divisors (3265585379).

15225231133 is a wasteful number, since it uses less digits than its factorization.

15225231133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145.

The product of its digits is 5400, while the sum is 28.

Adding to 15225231133 its reverse (33113252251), we get a palindrome (48338483384).

The spelling of 15225231133 in words is "fifteen billion, two hundred twenty-five million, two hundred thirty-one thousand, one hundred thirty-three".