3142247 has 4 divisors (see below), whose sum is σ = 3186576. Its totient is φ = 3097920.

The previous prime is 3142231. The next prime is 3142259. The reversal of 3142247 is 7422413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3142247 - 2⁴ = 3142231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142267) 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, 22058 + ... + 22199.

It is an arithmetic number, because the mean of its divisors is an integer number (796644).

Almost surely, 2^3142247 is an apocalyptic number.

3142247 is a deficient number, since it is larger than the sum of its proper divisors (44329).

3142247 is an equidigital number, since it uses as much as digits as its factorization.

3142247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44328.

The product of its digits is 1344, while the sum is 23.

The square root of 3142247 is about 1772.6384290091. The cubic root of 3142247 is about 146.4693564643.

The spelling of 3142247 in words is "three million, one hundred forty-two thousand, two hundred forty-seven".