1202565 has 32 divisors (see below), whose sum is σ = 2370816. Its totient is φ = 506880.

The previous prime is 1202561. The next prime is 1202569. The reversal of 1202565 is 5652021.

It is an interprime number because it is at equal distance from previous prime (1202561) and next prime (1202569).

It is not a de Polignac number, because 1202565 - 2² = 1202561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 925 + ... + 1805.

It is an arithmetic number, because the mean of its divisors is an integer number (74088).

2^1202565 is an apocalyptic number.

1202565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1202565 is a deficient number, since it is larger than the sum of its proper divisors (1168251).

1202565 is a wasteful number, since it uses less digits than its factorization.

1202565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1202565 is about 1096.6152470215. The cubic root of 1202565 is about 106.3415174588.

Adding to 1202565 its reverse (5652021), we get a palindrome (6854586).

It can be divided in two parts, 12025 and 65, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 1202565 in words is "one million, two hundred two thousand, five hundred sixty-five".