15230002005 has 24 divisors (see below), whose sum is σ = 26403282360. Its totient is φ = 8121248640.

The previous prime is 15230001971. The next prime is 15230002009. The reversal of 15230002005 is 50020003251.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 109118916 + 15120883089 = 10446^2 + 122967^2 .

It is not a de Polignac number, because 15230002005 - 2⁷ = 15230001877 is a prime.

It is a super-2 number, since 2×15230002005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15230002009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262591 + ... + 315299.

It is an arithmetic number, because the mean of its divisors is an integer number (1100136765).

Almost surely, 2^15230002005 is an apocalyptic number.

15230002005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15230002005 is a deficient number, since it is larger than the sum of its proper divisors (11173280355).

15230002005 is a wasteful number, since it uses less digits than its factorization.

15230002005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59141 (or 59138 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

Adding to 15230002005 its reverse (50020003251), we get a palindrome (65250005256).

The spelling of 15230002005 in words is "fifteen billion, two hundred thirty million, two thousand, five".