2126397 has 16 divisors (see below), whose sum is σ = 3489920. Its totient is φ = 1121472.

The previous prime is 2126387. The next prime is 2126407. The reversal of 2126397 is 7936212.

It is an interprime number because it is at equal distance from previous prime (2126387) and next prime (2126407).

It is not a de Polignac number, because 2126397 - 2⁴ = 2126381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3622 + ... + 4167.

It is an arithmetic number, because the mean of its divisors is an integer number (218120).

2^2126397 is an apocalyptic number.

It is an amenable number.

2126397 is a deficient number, since it is larger than the sum of its proper divisors (1363523).

2126397 is a wasteful number, since it uses less digits than its factorization.

2126397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7812.

The product of its digits is 4536, while the sum is 30.

The square root of 2126397 is about 1458.2170620316. The cubic root of 2126397 is about 128.5922465408.

The spelling of 2126397 in words is "two million, one hundred twenty-six thousand, three hundred ninety-seven".