1403453 has 2 divisors, whose sum is σ = 1403454. Its totient is φ = 1403452.

The previous prime is 1403443. The next prime is 1403459. The reversal of 1403453 is 3543041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1119364 + 284089 = 1058^2 + 533^2 .

It is an emirp because it is prime and its reverse (3543041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1403453 - 2¹² = 1399357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p₁₀₇₃₅₄ and since 1403453 and 107354 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1403459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701726 + 701727.

It is an arithmetic number, because the mean of its divisors is an integer number (701727).

2^1403453 is an apocalyptic number.

It is an amenable number.

1403453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403453 is an equidigital number, since it uses as much as digits as its factorization.

1403453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1403453 is about 1184.6742168208. The cubic root of 1403453 is about 111.9607909096.

Adding to 1403453 its reverse (3543041), we get a palindrome (4946494).

The spelling of 1403453 in words is "one million, four hundred three thousand, four hundred fifty-three".