1202145 has 24 divisors (see below), whose sum is σ = 2218944. Its totient is φ = 544416.

The previous prime is 1202129. The next prime is 1202147. The reversal of 1202145 is 5412021.

It is not a de Polignac number, because 1202145 - 2⁴ = 1202129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1202147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11182 + ... + 11288.

It is an arithmetic number, because the mean of its divisors is an integer number (92456).

2^1202145 is an apocalyptic number.

1202145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1202145 is a deficient number, since it is larger than the sum of its proper divisors (1016799).

1202145 is an equidigital number, since it uses as much as digits as its factorization.

1202145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1202145 is about 1096.4237319577. The cubic root of 1202145 is about 106.3291359692.

Adding to 1202145 its reverse (5412021), we get a palindrome (6614166).

The spelling of 1202145 in words is "one million, two hundred two thousand, one hundred forty-five".