311152 has 10 divisors (see below), whose sum is σ = 602888. Its totient is φ = 155568.

The previous prime is 311137. The next prime is 311153. The reversal of 311152 is 251113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311153) by changing a digit.

311152 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9708 + ... + 9739.

2³¹¹¹⁵² is an apocalyptic number.

It is an amenable number.

311152 is a deficient number, since it is larger than the sum of its proper divisors (291736).

311152 is a wasteful number, since it uses less digits than its factorization.

311152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19455 (or 19449 counting only the distinct ones).

The product of its digits is 30, while the sum is 13.

The square root of 311152 is about 557.8100034958. The cubic root of 311152 is about 67.7627255136.

Adding to 311152 its reverse (251113), we get a palindrome (562265).

The spelling of 311152 in words is "three hundred eleven thousand, one hundred fifty-two".