3144987 has 20 divisors (see below), whose sum is σ = 4817736. Its totient is φ = 2043360.

The previous prime is 3144971. The next prime is 3144989. The reversal of 3144987 is 7894413.

It is a happy number.

It is not a de Polignac number, because 3144987 - 2⁴ = 3144971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3144989) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2848 + ... + 3794.

Almost surely, 2^3144987 is an apocalyptic number.

3144987 is a deficient number, since it is larger than the sum of its proper divisors (1672749).

3144987 is an equidigital number, since it uses as much as digits as its factorization.

3144987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 991 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 3144987 is about 1773.4111198478. The cubic root of 3144987 is about 146.5119172435.

The spelling of 3144987 in words is "three million, one hundred forty-four thousand, nine hundred eighty-seven".