188748146281 has 2 divisors, whose sum is σ = 188748146282. Its totient is φ = 188748146280.

The previous prime is 188748146263. The next prime is 188748146299. The reversal of 188748146281 is 182641847881.

It is a balanced prime because it is at equal distance from previous prime (188748146263) and next prime (188748146299).

It can be written as a sum of positive squares in only one way, i.e., 185950688400 + 2797457881 = 431220^2 + 52891^2 .

It is a cyclic number.

It is not a de Polignac number, because 188748146281 - 2²⁷ = 188613928553 is a prime.

It is a super-2 number, since 2×188748146281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (188748146581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94374073140 + 94374073141.

It is an arithmetic number, because the mean of its divisors is an integer number (94374073141).

Almost surely, 2^188748146281 is an apocalyptic number.

It is an amenable number.

188748146281 is a deficient number, since it is larger than the sum of its proper divisors (1).

188748146281 is an equidigital number, since it uses as much as digits as its factorization.

188748146281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5505024, while the sum is 58.

The spelling of 188748146281 in words is "one hundred eighty-eight billion, seven hundred forty-eight million, one hundred forty-six thousand, two hundred eighty-one".