2949121 has 4 divisors (see below), whose sum is σ = 3370432. Its totient is φ = 2527812.

The previous prime is 2949119. The next prime is 2949137. The reversal of 2949121 is 1219492.

It is a happy number.

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 not a de Polignac number, because 2949121 - 2¹ = 2949119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2949121.

It is not an unprimeable number, because it can be changed into a prime (2949101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210645 + ... + 210658.

It is an arithmetic number, because the mean of its divisors is an integer number (842608).

It is a Proth number, since it is equal to 45 ⋅ 2¹⁶ + 1 and 45 < 2¹⁶.

2^2949121 is an apocalyptic number.

It is an amenable number.

2949121 is a deficient number, since it is larger than the sum of its proper divisors (421311).

2949121 is an equidigital number, since it uses as much as digits as its factorization.

2949121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421310.

The product of its digits is 1296, while the sum is 28.

The square root of 2949121 is about 1717.3004978745. The cubic root of 2949121 is about 143.4049680986.

The spelling of 2949121 in words is "two million, nine hundred forty-nine thousand, one hundred twenty-one".