2126020619 has 2 divisors, whose sum is σ = 2126020620. Its totient is φ = 2126020618.

The previous prime is 2126020591. The next prime is 2126020621. The reversal of 2126020619 is 9160206212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2126020619 - 2²⁰ = 2124972043 is a prime.

It is a super-2 number, since 2×2126020619² = 9039927344826286322, which contains 22 as substring.

Together with 2126020621, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2126020591 and 2126020600.

It is not a weakly prime, because it can be changed into another prime (2126020669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063010309 + 1063010310.

It is an arithmetic number, because the mean of its divisors is an integer number (1063010310).

Almost surely, 2^2126020619 is an apocalyptic number.

2126020619 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126020619 is an equidigital number, since it uses as much as digits as its factorization.

2126020619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2126020619 is about 46108.7911249037. The cubic root of 2126020619 is about 1285.8465897460.

It can be divided in two parts, 2 and 126020619, that added together give a palindrome (126020621).

The spelling of 2126020619 in words is "two billion, one hundred twenty-six million, twenty thousand, six hundred nineteen".