1225365 has 16 divisors (see below), whose sum is σ = 1977216. Its totient is φ = 648000.

The previous prime is 1225361. The next prime is 1225373. The reversal of 1225365 is 5635221.

It is not a de Polignac number, because 1225365 - 2² = 1225361 is a prime.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 1995 + ... + 2535.

It is an arithmetic number, because the mean of its divisors is an integer number (123576).

2^1225365 is an apocalyptic number.

1225365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225365 is a deficient number, since it is larger than the sum of its proper divisors (751851).

1225365 is a wasteful number, since it uses less digits than its factorization.

1225365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700.

The product of its digits is 1800, while the sum is 24.

The square root of 1225365 is about 1106.9620589704. The cubic root of 1225365 is about 107.0093740877.

The spelling of 1225365 in words is "one million, two hundred twenty-five thousand, three hundred sixty-five".