189459937 has 2 divisors, whose sum is σ = 189459938. Its totient is φ = 189459936.

The previous prime is 189459923. The next prime is 189459979. The reversal of 189459937 is 739954981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162409536 + 27050401 = 12744^2 + 5201^2 .

It is a cyclic number.

It is not a de Polignac number, because 189459937 - 2¹¹ = 189457889 is a prime.

It is not a weakly prime, because it can be changed into another prime (189459337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94729968 + 94729969.

It is an arithmetic number, because the mean of its divisors is an integer number (94729969).

Almost surely, 2^189459937 is an apocalyptic number.

It is an amenable number.

189459937 is a deficient number, since it is larger than the sum of its proper divisors (1).

189459937 is an equidigital number, since it uses as much as digits as its factorization.

189459937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 55.

The square root of 189459937 is about 13764.4446673304. Note that the first 3 decimals coincide. The cubic root of 189459937 is about 574.3444950948.

It can be divided in two parts, 18945 and 9937, that added together give a palindrome (28882).

The spelling of 189459937 in words is "one hundred eighty-nine million, four hundred fifty-nine thousand, nine hundred thirty-seven".