1201503 has 16 divisors (see below), whose sum is σ = 1710720. Its totient is φ = 747936.

The previous prime is 1201493. The next prime is 1201513. The reversal of 1201503 is 3051021.

It is an interprime number because it is at equal distance from previous prime (1201493) and next prime (1201513).

It is not a de Polignac number, because 1201503 - 2⁶ = 1201439 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201513) 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, 6001 + ... + 6197.

It is an arithmetic number, because the mean of its divisors is an integer number (106920).

2^1201503 is an apocalyptic number.

1201503 is a deficient number, since it is larger than the sum of its proper divisors (509217).

1201503 is a wasteful number, since it uses less digits than its factorization.

1201503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 1201503 is about 1096.1309228372. The cubic root of 1201503 is about 106.3102044036.

Adding to 1201503 its reverse (3051021), we get a palindrome (4252524).

The spelling of 1201503 in words is "one million, two hundred one thousand, five hundred three".