1311172 has 12 divisors (see below), whose sum is σ = 2309776. Its totient is φ = 651240.

The previous prime is 1311143. The next prime is 1311173. The reversal of 1311172 is 2711131.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1311173) 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, 354 + ... + 1657.

2^1311172 is an apocalyptic number.

It is an amenable number.

1311172 is a deficient number, since it is larger than the sum of its proper divisors (998604).

1311172 is a wasteful number, since it uses less digits than its factorization.

1311172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178 (or 2176 counting only the distinct ones).

The product of its digits is 42, while the sum is 16.

The square root of 1311172 is about 1145.0641903404. The cubic root of 1311172 is about 109.4510390427.

The spelling of 1311172 in words is "one million, three hundred eleven thousand, one hundred seventy-two".