15140122 has 4 divisors (see below), whose sum is σ = 22710186. Its totient is φ = 7570060.

The previous prime is 15140101. The next prime is 15140129. The reversal of 15140122 is 22104151.

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

It can be written as a sum of positive squares in only one way, i.e., 14220441 + 919681 = 3771^2 + 959^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15140096 and 15140105.

It is not an unprimeable number, because it can be changed into a prime (15140129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3785029 + ... + 3785032.

Almost surely, 2^15140122 is an apocalyptic number.

15140122 is a deficient number, since it is larger than the sum of its proper divisors (7570064).

15140122 is an equidigital number, since it uses as much as digits as its factorization.

15140122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570063.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 15140122 is about 3891.0309687794. The cubic root of 15140122 is about 247.3867631503.

Adding to 15140122 its reverse (22104151), we get a palindrome (37244273).

The spelling of 15140122 in words is "fifteen million, one hundred forty thousand, one hundred twenty-two".