1512223 has 2 divisors, whose sum is σ = 1512224. Its totient is φ = 1512222.

The previous prime is 1512221. The next prime is 1512233. The reversal of 1512223 is 3222151.

It is a weak prime.

It is an emirp because it is prime and its reverse (3222151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1512223 - 2¹ = 1512221 is a prime.

Together with 1512221, it forms a pair of twin primes.

1512223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1512197 and 1512206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1512221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756111 + 756112.

It is an arithmetic number, because the mean of its divisors is an integer number (756112).

2^1512223 is an apocalyptic number.

1512223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1512223 is an equidigital number, since it uses as much as digits as its factorization.

1512223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 16.

The square root of 1512223 is about 1229.7247659537. The cubic root of 1512223 is about 114.7815133299.

Adding to 1512223 its reverse (3222151), we get a palindrome (4734374).

The spelling of 1512223 in words is "one million, five hundred twelve thousand, two hundred twenty-three".