1213738 has 8 divisors (see below), whose sum is σ = 1833120. Its totient is φ = 602700.

The previous prime is 1213721. The next prime is 1213741. The reversal of 1213738 is 8373121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1708 + ... + 2311.

It is an arithmetic number, because the mean of its divisors is an integer number (229140).

2^1213738 is an apocalyptic number.

1213738 is a deficient number, since it is larger than the sum of its proper divisors (619382).

1213738 is a wasteful number, since it uses less digits than its factorization.

1213738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4172.

The product of its digits is 1008, while the sum is 25.

The square root of 1213738 is about 1101.6977807003. The cubic root of 1213738 is about 106.6698414854.

Adding to 1213738 its reverse (8373121), we get a palindrome (9586859).

The spelling of 1213738 in words is "one million, two hundred thirteen thousand, seven hundred thirty-eight".