2126413 has 6 divisors (see below), whose sum is σ = 2170154. Its totient is φ = 2083536.

The previous prime is 2126407. The next prime is 2126429. The reversal of 2126413 is 3146212.

It can be written as a sum of positive squares in 3 ways, for example, as 842724 + 1283689 = 918^2 + 1133^2 .

It is not a de Polignac number, because 2126413 - 2⁵ = 2126381 is a prime.

It is a d-powerful number, because it can be written as 2³ + 1 + 2¹⁹ + 6⁵ + 4² + 1 + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2431 + ... + 3187.

2^2126413 is an apocalyptic number.

It is an amenable number.

2126413 is a deficient number, since it is larger than the sum of its proper divisors (43741).

2126413 is an frugal number, since it uses more digits than its factorization.

2126413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 810 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 2126413 is about 1458.2225481729. Note that the first 3 decimals coincide. The cubic root of 2126413 is about 128.5925690693.

It can be divided in two parts, 212 and 6413, that multiplied together give a square (1359556 = 1166²).

The spelling of 2126413 in words is "two million, one hundred twenty-six thousand, four hundred thirteen".