1402553 has 4 divisors (see below), whose sum is σ = 1407348. Its totient is φ = 1397760.

The previous prime is 1402547. The next prime is 1402567. The reversal of 1402553 is 3552041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 426409 + 976144 = 653^2 + 988^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402553 - 2¹⁰ = 1401529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1402543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928 + ... + 2553.

It is an arithmetic number, because the mean of its divisors is an integer number (351837).

2^1402553 is an apocalyptic number.

It is an amenable number.

1402553 is a deficient number, since it is larger than the sum of its proper divisors (4795).

1402553 is an equidigital number, since it uses as much as digits as its factorization.

1402553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4794.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1402553 is about 1184.2943046388. The cubic root of 1402553 is about 111.9368532219.

Adding to 1402553 its reverse (3552041), we get a palindrome (4954594).

The spelling of 1402553 in words is "one million, four hundred two thousand, five hundred fifty-three".