1225369 has 4 divisors (see below), whose sum is σ = 1240960. Its totient is φ = 1209780.

The previous prime is 1225361. The next prime is 1225373. The reversal of 1225369 is 9635221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1225369 - 2³ = 1225361 is a prime.

It is a super-2 number, since 2×1225369² = 3003058372322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7677 + ... + 7834.

It is an arithmetic number, because the mean of its divisors is an integer number (310240).

2^1225369 is an apocalyptic number.

It is an amenable number.

1225369 is a deficient number, since it is larger than the sum of its proper divisors (15591).

1225369 is an equidigital number, since it uses as much as digits as its factorization.

1225369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15590.

The product of its digits is 3240, while the sum is 28.

The square root of 1225369 is about 1106.9638657156. The cubic root of 1225369 is about 107.0094905257.

The spelling of 1225369 in words is "one million, two hundred twenty-five thousand, three hundred sixty-nine".