189375757 has 2 divisors, whose sum is σ = 189375758. Its totient is φ = 189375756.

The previous prime is 189375751. The next prime is 189375787. The reversal of 189375757 is 757573981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188540361 + 835396 = 13731^2 + 914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189375757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189375751) 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, 94687878 + 94687879.

It is an arithmetic number, because the mean of its divisors is an integer number (94687879).

Almost surely, 2^189375757 is an apocalyptic number.

It is an amenable number.

189375757 is a deficient number, since it is larger than the sum of its proper divisors (1).

189375757 is an equidigital number, since it uses as much as digits as its factorization.

189375757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1852200, while the sum is 52.

The square root of 189375757 is about 13761.3864490465. The cubic root of 189375757 is about 574.2594190927.

The spelling of 189375757 in words is "one hundred eighty-nine million, three hundred seventy-five thousand, seven hundred fifty-seven".