188131733 has 2 divisors, whose sum is σ = 188131734. Its totient is φ = 188131732.

The previous prime is 188131661. The next prime is 188131771. The reversal of 188131733 is 337131881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165302449 + 22829284 = 12857^2 + 4778^2 .

It is a cyclic number.

It is not a de Polignac number, because 188131733 - 2⁸ = 188131477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188131693 and 188131702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188131793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94065866 + 94065867.

It is an arithmetic number, because the mean of its divisors is an integer number (94065867).

Almost surely, 2^188131733 is an apocalyptic number.

It is an amenable number.

188131733 is a deficient number, since it is larger than the sum of its proper divisors (1).

188131733 is an equidigital number, since it uses as much as digits as its factorization.

188131733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 188131733 is about 13716.1121678120. The cubic root of 188131733 is about 572.9992040493. Note that the first 3 decimals are identical.

The spelling of 188131733 in words is "one hundred eighty-eight million, one hundred thirty-one thousand, seven hundred thirty-three".