1311672 has 64 divisors (see below), whose sum is σ = 3548160. Its totient is φ = 403200.

The previous prime is 1311643. The next prime is 1311689. The reversal of 1311672 is 2761131.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30483 + ... + 30525.

It is an arithmetic number, because the mean of its divisors is an integer number (55440).

2^1311672 is an apocalyptic number.

1311672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1774080).

1311672 is an abundant number, since it is smaller than the sum of its proper divisors (2236488).

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

1311672 is a wasteful number, since it uses less digits than its factorization.

1311672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 120 counting only the distinct ones).

The product of its digits is 252, while the sum is 21.

The square root of 1311672 is about 1145.2824979017. The cubic root of 1311672 is about 109.4649498962.

The spelling of 1311672 in words is "one million, three hundred eleven thousand, six hundred seventy-two".