1213733 has 8 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 1148224.

The previous prime is 1213721. The next prime is 1213741. The reversal of 1213733 is 3373121.

It is a happy number.

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 1213733 - 2¹⁰ = 1212709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213763) 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, 2366 + ... + 2832.

It is an arithmetic number, because the mean of its divisors is an integer number (160056).

2^1213733 is an apocalyptic number.

It is an amenable number.

1213733 is a deficient number, since it is larger than the sum of its proper divisors (66715).

1213733 is a wasteful number, since it uses less digits than its factorization.

1213733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603.

The product of its digits is 378, while the sum is 20.

The square root of 1213733 is about 1101.6955114731. The cubic root of 1213733 is about 106.6696950095.

Adding to 1213733 its reverse (3373121), we get a palindrome (4586854).

The spelling of 1213733 in words is "one million, two hundred thirteen thousand, seven hundred thirty-three".