15005142122 has 4 divisors (see below), whose sum is σ = 22507713186. Its totient is φ = 7502571060.

The previous prime is 15005142091. The next prime is 15005142127. The reversal of 15005142122 is 22124150051.

15005142122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22124150051 = 60383 ⋅366397.

It can be written as a sum of positive squares in only one way, i.e., 14764923121 + 240219001 = 121511^2 + 15499^2 .

It is not an unprimeable number, because it can be changed into a prime (15005142127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3751285529 + ... + 3751285532.

Almost surely, 2^15005142122 is an apocalyptic number.

15005142122 is a deficient number, since it is larger than the sum of its proper divisors (7502571064).

15005142122 is an equidigital number, since it uses as much as digits as its factorization.

15005142122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7502571063.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 15005142122 its reverse (22124150051), we get a palindrome (37129292173).

The spelling of 15005142122 in words is "fifteen billion, five million, one hundred forty-two thousand, one hundred twenty-two".