1203172 has 18 divisors (see below), whose sum is σ = 2182614. Its totient is φ = 580320.

The previous prime is 1203161. The next prime is 1203179. The reversal of 1203172 is 2713021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 649636 + 553536 = 806^2 + 744^2 .

It is a super-3 number, since 3×1203172³ = 5225217880853233344, which contains 333 as substring.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203179) 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 5 ways as a sum of consecutive naturals, for example, 3688 + ... + 4000.

2^1203172 is an apocalyptic number.

It is an amenable number.

1203172 is a deficient number, since it is larger than the sum of its proper divisors (979442).

1203172 is a wasteful number, since it uses less digits than its factorization.

1203172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1203172 is about 1096.8919728032. The cubic root of 1203172 is about 106.3594065662.

Adding to 1203172 its reverse (2713021), we get a palindrome (3916193).

The spelling of 1203172 in words is "one million, two hundred three thousand, one hundred seventy-two".