189051077 has 2 divisors, whose sum is σ = 189051078. Its totient is φ = 189051076.

The previous prime is 189051059. The next prime is 189051089. The reversal of 189051077 is 770150981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104980516 + 84070561 = 10246^2 + 9169^2 .

It is an emirp because it is prime and its reverse (770150981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189051077 - 2⁶ = 189051013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189051077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189051047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94525538 + 94525539.

It is an arithmetic number, because the mean of its divisors is an integer number (94525539).

Almost surely, 2^189051077 is an apocalyptic number.

It is an amenable number.

189051077 is a deficient number, since it is larger than the sum of its proper divisors (1).

189051077 is an equidigital number, since it uses as much as digits as its factorization.

189051077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 189051077 is about 13749.5846119074. The cubic root of 189051077 is about 573.9310468876.

The spelling of 189051077 in words is "one hundred eighty-nine million, fifty-one thousand, seventy-seven".