1204013 has 4 divisors (see below), whose sum is σ = 1224480. Its totient is φ = 1183548.

The previous prime is 1204003. The next prime is 1204019. The reversal of 1204013 is 3104021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1204013 - 2⁶ = 1203949 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1203985 and 1204003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204019) 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, 10145 + ... + 10262.

It is an arithmetic number, because the mean of its divisors is an integer number (306120).

2^1204013 is an apocalyptic number.

It is an amenable number.

1204013 is a deficient number, since it is larger than the sum of its proper divisors (20467).

1204013 is an equidigital number, since it uses as much as digits as its factorization.

1204013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20466.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1204013 is about 1097.2752617279. The cubic root of 1204013 is about 106.3841820287.

Adding to 1204013 its reverse (3104021), we get a palindrome (4308034).

It can be divided in two parts, 12040 and 13, that multiplied together give a triangular number (156520 = T₅₅₉).

The spelling of 1204013 in words is "one million, two hundred four thousand, thirteen".