23019047 has 2 divisors, whose sum is σ = 23019048. Its totient is φ = 23019046.

The previous prime is 23019043. The next prime is 23019077. The reversal of 23019047 is 74091032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23019047 - 2² = 23019043 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23019041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11509523 + 11509524.

It is an arithmetic number, because the mean of its divisors is an integer number (11509524).

Almost surely, 2^23019047 is an apocalyptic number.

23019047 is a deficient number, since it is larger than the sum of its proper divisors (1).

23019047 is an equidigital number, since it uses as much as digits as its factorization.

23019047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 23019047 is about 4797.8168993825. The cubic root of 23019047 is about 284.4651794181.

The spelling of 23019047 in words is "twenty-three million, nineteen thousand, forty-seven".