3124991 has 4 divisors (see below), whose sum is σ = 3308832. Its totient is φ = 2941152.

The previous prime is 3124967. The next prime is 3124997. The reversal of 3124991 is 1994213.

It is a happy number.

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 3124991 - 2¹⁴ = 3108607 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 (3124997) 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, 91895 + ... + 91928.

It is an arithmetic number, because the mean of its divisors is an integer number (827208).

Almost surely, 2^3124991 is an apocalyptic number.

3124991 is a deficient number, since it is larger than the sum of its proper divisors (183841).

3124991 is a wasteful number, since it uses less digits than its factorization.

3124991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183840.

The product of its digits is 1944, while the sum is 29.

The square root of 3124991 is about 1767.7644073801. The cubic root of 3124991 is about 146.2007465577.

The spelling of 3124991 in words is "three million, one hundred twenty-four thousand, nine hundred ninety-one".