15345132623 has 4 divisors (see below), whose sum is σ = 15363039120. Its totient is φ = 15327226128.

The previous prime is 15345132589. The next prime is 15345132641. The reversal of 15345132623 is 32623154351.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15345132623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15345132643) 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, 8951963 + ... + 8953676.

It is an arithmetic number, because the mean of its divisors is an integer number (3840759780).

Almost surely, 2^15345132623 is an apocalyptic number.

15345132623 is a deficient number, since it is larger than the sum of its proper divisors (17906497).

15345132623 is an equidigital number, since it uses as much as digits as its factorization.

15345132623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17906496.

The product of its digits is 64800, while the sum is 35.

Adding to 15345132623 its reverse (32623154351), we get a palindrome (47968286974).

The spelling of 15345132623 in words is "fifteen billion, three hundred forty-five million, one hundred thirty-two thousand, six hundred twenty-three".