2990121 has 8 divisors (see below), whose sum is σ = 4002144. Its totient is φ = 1985760.

The previous prime is 2990083. The next prime is 2990123. The reversal of 2990121 is 1210992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2990121 - 2¹⁰ = 2989097 is a prime.

2990121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2990091 and 2990100.

It is not an unprimeable number, because it can be changed into a prime (2990123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931 + ... + 2616.

It is an arithmetic number, because the mean of its divisors is an integer number (500268).

2^2990121 is an apocalyptic number.

It is an amenable number.

2990121 is a deficient number, since it is larger than the sum of its proper divisors (1012023).

2990121 is a wasteful number, since it uses less digits than its factorization.

2990121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 2990121 is about 1729.1966342785. The cubic root of 2990121 is about 144.0664720117.

The spelling of 2990121 in words is "two million, nine hundred ninety thousand, one hundred twenty-one".