134228187 has 6 divisors (see below), whose sum is σ = 193885172. Its totient is φ = 89485452.

The previous prime is 134228177. The next prime is 134228291. The reversal of 134228187 is 781822431.

It is not a de Polignac number, because 134228187 - 2¹⁸ = 133966043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134228147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7457113 + ... + 7457130.

Almost surely, 2^134228187 is an apocalyptic number.

134228187 is a deficient number, since it is larger than the sum of its proper divisors (59656985).

134228187 is a wasteful number, since it uses less digits than its factorization.

134228187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14914249 (or 14914246 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 134228187 is about 11585.6888875889. The cubic root of 134228187 is about 512.0132989608.

It can be divided in two parts, 13422 and 8187, that added together give a square (21609 = 147²).

The spelling of 134228187 in words is "one hundred thirty-four million, two hundred twenty-eight thousand, one hundred eighty-seven".