1213072 has 20 divisors (see below), whose sum is σ = 2686336. Its totient is φ = 519840.

The previous prime is 1213063. The next prime is 1213081. The reversal of 1213072 is 2703121.

It is a happy number.

1213072 is nontrivially palindromic in base 6.

It is an interprime number because it is at equal distance from previous prime (1213063) and next prime (1213081).

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 5304 + ... + 5527.

2^1213072 is an apocalyptic number.

It is an amenable number.

1213072 is an abundant number, since it is smaller than the sum of its proper divisors (1473264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213072 is a wasteful number, since it uses less digits than its factorization.

1213072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10846 (or 10840 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1213072 is about 1101.3954784727. The cubic root of 1213072 is about 106.6503273584.

Adding to 1213072 its reverse (2703121), we get a palindrome (3916193).

The spelling of 1213072 in words is "one million, two hundred thirteen thousand, seventy-two".