312142241 has 4 divisors (see below), whose sum is σ = 328570800. Its totient is φ = 295713684.

The previous prime is 312142211. The next prime is 312142277. The reversal of 312142241 is 142241213.

312142241 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312142241 - 2¹⁰ = 312141217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (312142211) 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, 8214251 + ... + 8214288.

It is an arithmetic number, because the mean of its divisors is an integer number (82142700).

Almost surely, 2^312142241 is an apocalyptic number.

It is an amenable number.

312142241 is a deficient number, since it is larger than the sum of its proper divisors (16428559).

312142241 is a wasteful number, since it uses less digits than its factorization.

312142241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16428558.

The product of its digits is 384, while the sum is 20.

The square root of 312142241 is about 17667.5476792904. The cubic root of 312142241 is about 678.3453433082.

Adding to 312142241 its reverse (142241213), we get a palindrome (454383454).

The spelling of 312142241 in words is "three hundred twelve million, one hundred forty-two thousand, two hundred forty-one".