15142219 has 2 divisors, whose sum is σ = 15142220. Its totient is φ = 15142218.

The previous prime is 15142177. The next prime is 15142249. The reversal of 15142219 is 91224151.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (91224151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15142219 - 2¹⁷ = 15011147 is a prime.

It is a super-2 number, since 2×15142219² = 458573592487922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15142193 and 15142202.

It is not a weakly prime, because it can be changed into another prime (15142249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7571109 + 7571110.

It is an arithmetic number, because the mean of its divisors is an integer number (7571110).

Almost surely, 2^15142219 is an apocalyptic number.

15142219 is a deficient number, since it is larger than the sum of its proper divisors (1).

15142219 is an equidigital number, since it uses as much as digits as its factorization.

15142219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 25.

The square root of 15142219 is about 3891.3004253077. The cubic root of 15142219 is about 247.3981841524.

The spelling of 15142219 in words is "fifteen million, one hundred forty-two thousand, two hundred nineteen".