1421352553 has 8 divisors (see below), whose sum is σ = 1477989000. Its totient is φ = 1365224448.

The previous prime is 1421352523. The next prime is 1421352577. The reversal of 1421352553 is 3552531241.

It can be written as a sum of positive squares in 4 ways, for example, as 2474329 + 1418878224 = 1573^2 + 37668^2 .

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 1421352553 - 2⁹ = 1421352041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421352503) 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, 121378 + ... + 132571.

It is an arithmetic number, because the mean of its divisors is an integer number (184748625).

Almost surely, 2^1421352553 is an apocalyptic number.

It is an amenable number.

1421352553 is a deficient number, since it is larger than the sum of its proper divisors (56636447).

1421352553 is a wasteful number, since it uses less digits than its factorization.

1421352553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254171.

The product of its digits is 18000, while the sum is 31.

The square root of 1421352553 is about 37700.8296062567. The cubic root of 1421352553 is about 1124.3476192594.

Adding to 1421352553 its reverse (3552531241), we get a palindrome (4973883794).

It can be divided in two parts, 14213 and 52553, that added together give a palindrome (66766).

The spelling of 1421352553 in words is "one billion, four hundred twenty-one million, three hundred fifty-two thousand, five hundred fifty-three".