312243141 has 24 divisors (see below), whose sum is σ = 484992480. Its totient is φ = 178168032.

The previous prime is 312243121. The next prime is 312243143. The reversal of 312243141 is 141342213.

It is not a de Polignac number, because 312243141 - 2⁶ = 312243077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312243143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156150 + ... + 158136.

It is an arithmetic number, because the mean of its divisors is an integer number (20208020).

Almost surely, 2^312243141 is an apocalyptic number.

It is an amenable number.

312243141 is a deficient number, since it is larger than the sum of its proper divisors (172749339).

312243141 is a wasteful number, since it uses less digits than its factorization.

312243141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073 (or 3066 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 312243141 is about 17670.4029665427. The cubic root of 312243141 is about 678.4184271597.

Adding to 312243141 its reverse (141342213), we get a palindrome (453585354).

The spelling of 312243141 in words is "three hundred twelve million, two hundred forty-three thousand, one hundred forty-one".