15233212545 has 16 divisors (see below), whose sum is σ = 24426021312. Its totient is φ = 8106752960.

The previous prime is 15233212531. The next prime is 15233212571. The reversal of 15233212545 is 54521233251.

It is not a de Polignac number, because 15233212545 - 2⁷ = 15233212417 is a prime.

It is a super-2 number, since 2×15233212545² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1094547 + ... + 1108376.

It is an arithmetic number, because the mean of its divisors is an integer number (1526626332).

Almost surely, 2^15233212545 is an apocalyptic number.

15233212545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15233212545 is a deficient number, since it is larger than the sum of its proper divisors (9192808767).

15233212545 is a wasteful number, since it uses less digits than its factorization.

15233212545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203392.

The product of its digits is 36000, while the sum is 33.

Adding to 15233212545 its reverse (54521233251), we get a palindrome (69754445796).

The spelling of 15233212545 in words is "fifteen billion, two hundred thirty-three million, two hundred twelve thousand, five hundred forty-five".