1201440533 has 8 divisors (see below), whose sum is σ = 1209016536. Its totient is φ = 1193875200.

The previous prime is 1201440503. The next prime is 1201440607. The reversal of 1201440533 is 3350441021.

It can be written as a sum of positive squares in 4 ways, for example, as 286861969 + 914578564 = 16937^2 + 30242^2 .

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 1201440533 - 2¹⁰ = 1201439509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201440499 and 1201440508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201440503) 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, 454985 + ... + 457617.

It is an arithmetic number, because the mean of its divisors is an integer number (151127067).

Almost surely, 2^1201440533 is an apocalyptic number.

It is an amenable number.

1201440533 is a deficient number, since it is larger than the sum of its proper divisors (7576003).

1201440533 is a wasteful number, since it uses less digits than its factorization.

1201440533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5335.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1201440533 is about 34661.8022180036. The cubic root of 1201440533 is about 1063.0836199049.

Adding to 1201440533 its reverse (3350441021), we get a palindrome (4551881554).

The spelling of 1201440533 in words is "one billion, two hundred one million, four hundred forty thousand, five hundred thirty-three".