189381383 has 2 divisors, whose sum is σ = 189381384. Its totient is φ = 189381382.

The previous prime is 189381371. The next prime is 189381391. The reversal of 189381383 is 383183981.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189381383 - 2¹⁴ = 189364999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189386383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94690691 + 94690692.

It is an arithmetic number, because the mean of its divisors is an integer number (94690692).

Almost surely, 2^189381383 is an apocalyptic number.

189381383 is a deficient number, since it is larger than the sum of its proper divisors (1).

189381383 is an equidigital number, since it uses as much as digits as its factorization.

189381383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 189381383 is about 13761.5908600714. The cubic root of 189381383 is about 574.2651057612.

The spelling of 189381383 in words is "one hundred eighty-nine million, three hundred eighty-one thousand, three hundred eighty-three".