312542349 has 16 divisors (see below), whose sum is σ = 480627840. Its totient is φ = 176955840.

The previous prime is 312542333. The next prime is 312542353. The reversal of 312542349 is 943245213.

It is not a de Polignac number, because 312542349 - 2⁴ = 312542333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312542359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65982 + ... + 70559.

It is an arithmetic number, because the mean of its divisors is an integer number (30039240).

Almost surely, 2^312542349 is an apocalyptic number.

It is an amenable number.

312542349 is a deficient number, since it is larger than the sum of its proper divisors (168085491).

312542349 is a wasteful number, since it uses less digits than its factorization.

312542349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136660.

The product of its digits is 25920, while the sum is 33.

The square root of 312542349 is about 17678.8672996886. The cubic root of 312542349 is about 678.6350568632.

The spelling of 312542349 in words is "three hundred twelve million, five hundred forty-two thousand, three hundred forty-nine".