190135237 has 2 divisors, whose sum is σ = 190135238. Its totient is φ = 190135236.

The previous prime is 190135201. The next prime is 190135241. The reversal of 190135237 is 732531091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114896961 + 75238276 = 10719^2 + 8674^2 .

It is an emirp because it is prime and its reverse (732531091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190135237 - 2¹⁵ = 190102469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190135199 and 190135208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190135247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95067618 + 95067619.

It is an arithmetic number, because the mean of its divisors is an integer number (95067619).

Almost surely, 2^190135237 is an apocalyptic number.

It is an amenable number.

190135237 is a deficient number, since it is larger than the sum of its proper divisors (1).

190135237 is an equidigital number, since it uses as much as digits as its factorization.

190135237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 190135237 is about 13788.9534410701. The cubic root of 190135237 is about 575.0260726678.

The spelling of 190135237 in words is "one hundred ninety million, one hundred thirty-five thousand, two hundred thirty-seven".