19528123 has 2 divisors, whose sum is σ = 19528124. Its totient is φ = 19528122.

The previous prime is 19528111. The next prime is 19528133. The reversal of 19528123 is 32182591.

19528123 is nontrivially palindromic in base 13.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19528123 - 2¹³ = 19519931 is a prime.

It is not a weakly prime, because it can be changed into another prime (19528133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9764061 + 9764062.

It is an arithmetic number, because the mean of its divisors is an integer number (9764062).

Almost surely, 2^19528123 is an apocalyptic number.

19528123 is a deficient number, since it is larger than the sum of its proper divisors (1).

19528123 is an equidigital number, since it uses as much as digits as its factorization.

19528123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 31.

The square root of 19528123 is about 4419.0635885898. The cubic root of 19528123 is about 269.2899633967.

The spelling of 19528123 in words is "nineteen million, five hundred twenty-eight thousand, one hundred twenty-three".