23187029 has 2 divisors, whose sum is σ = 23187030. Its totient is φ = 23187028.

The previous prime is 23186983. The next prime is 23187061. The reversal of 23187029 is 92078132.

It is an a-pointer prime, because the next prime (23187061) can be obtained adding 23187029 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12264004 + 10923025 = 3502^2 + 3305^2 .

It is a cyclic number.

It is not a de Polignac number, because 23187029 - 2⁸ = 23186773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23186986 and 23187004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23187089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11593514 + 11593515.

It is an arithmetic number, because the mean of its divisors is an integer number (11593515).

Almost surely, 2^23187029 is an apocalyptic number.

It is an amenable number.

23187029 is a deficient number, since it is larger than the sum of its proper divisors (1).

23187029 is an equidigital number, since it uses as much as digits as its factorization.

23187029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 23187029 is about 4815.2911646130. The cubic root of 23187029 is about 285.1554666297.

The spelling of 23187029 in words is "twenty-three million, one hundred eighty-seven thousand, twenty-nine".