20134619 has 2 divisors, whose sum is σ = 20134620. Its totient is φ = 20134618.

The previous prime is 20134603. The next prime is 20134627. The reversal of 20134619 is 91643102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20134619 - 2⁴ = 20134603 is a prime.

It is a super-2 number, since 2×20134619² = 810805764550322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20134669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067309 + 10067310.

It is an arithmetic number, because the mean of its divisors is an integer number (10067310).

Almost surely, 2^20134619 is an apocalyptic number.

20134619 is a deficient number, since it is larger than the sum of its proper divisors (1).

20134619 is an equidigital number, since it uses as much as digits as its factorization.

20134619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 20134619 is about 4487.1615749826. The cubic root of 20134619 is about 272.0494206265.

The spelling of 20134619 in words is "twenty million, one hundred thirty-four thousand, six hundred nineteen".