1361503 has 8 divisors (see below), whose sum is σ = 1599696. Its totient is φ = 1142400.

The previous prime is 1361497. The next prime is 1361533. The reversal of 1361503 is 3051631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1361503 - 2⁵ = 1361471 is a prime.

It is a Duffinian number.

1361503 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4618 + ... + 4903.

It is an arithmetic number, because the mean of its divisors is an integer number (199962).

2^1361503 is an apocalyptic number.

1361503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1361503 is a deficient number, since it is larger than the sum of its proper divisors (238193).

1361503 is a wasteful number, since it uses less digits than its factorization.

1361503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9545.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1361503 is about 1166.8346069602. The cubic root of 1361503 is about 110.8339643559.

It can be divided in two parts, 13 and 61503, that added together give a palindrome (61516).

The spelling of 1361503 in words is "one million, three hundred sixty-one thousand, five hundred three".