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2010121 = 4346747
BaseRepresentation
bin111101010110000001001
310210010100221
413222300021
51003310441
6111030041
723041261
oct7526011
93703327
102010121
111153263
1280b321
13554c29
143a47a1
1529a8d1
hex1eac09

2010121 has 4 divisors (see below), whose sum is σ = 2056912. Its totient is φ = 1963332.

The previous prime is 2010103. The next prime is 2010137. The reversal of 2010121 is 1210102.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1210102 = 2605051.

It is a cyclic number.

It is not a de Polignac number, because 2010121 - 25 = 2010089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010161) 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, 23331 + ... + 23416.

It is an arithmetic number, because the mean of its divisors is an integer number (514228).

22010121 is an apocalyptic number.

It is an amenable number.

2010121 is a deficient number, since it is larger than the sum of its proper divisors (46791).

2010121 is an equidigital number, since it uses as much as digits as its factorization.

2010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46790.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2010121 is about 1417.7873606433. The cubic root of 2010121 is about 126.2042751776.

Adding to 2010121 its reverse (1210102), we get a palindrome (3220223).

The spelling of 2010121 in words is "two million, ten thousand, one hundred twenty-one".

Divisors: 1 43 46747 2010121