23500154189 has 2 divisors, whose sum is σ = 23500154190. Its totient is φ = 23500154188.

The previous prime is 23500154179. The next prime is 23500154281. The reversal of 23500154189 is 98145100532.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16165088164 + 7335066025 = 127142^2 + 85645^2 .

It is a cyclic number.

It is not a de Polignac number, because 23500154189 - 2²⁸ = 23231718733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23500154149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11750077094 + 11750077095.

It is an arithmetic number, because the mean of its divisors is an integer number (11750077095).

Almost surely, 2^23500154189 is an apocalyptic number.

It is an amenable number.

23500154189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23500154189 is an equidigital number, since it uses as much as digits as its factorization.

23500154189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 23500154189 in words is "twenty-three billion, five hundred million, one hundred fifty-four thousand, one hundred eighty-nine".