135250187 has 2 divisors, whose sum is σ = 135250188. Its totient is φ = 135250186.

The previous prime is 135250177. The next prime is 135250201. The reversal of 135250187 is 781052531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135250187 - 2⁶ = 135250123 is a prime.

It is a super-2 number, since 2×135250187² = 36585226167069938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135250177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67625093 + 67625094.

It is an arithmetic number, because the mean of its divisors is an integer number (67625094).

Almost surely, 2^135250187 is an apocalyptic number.

135250187 is a deficient number, since it is larger than the sum of its proper divisors (1).

135250187 is an equidigital number, since it uses as much as digits as its factorization.

135250187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 135250187 is about 11629.7113893682. The cubic root of 135250187 is about 513.3094875170.

The spelling of 135250187 in words is "one hundred thirty-five million, two hundred fifty thousand, one hundred eighty-seven".