134538251 has 2 divisors, whose sum is σ = 134538252. Its totient is φ = 134538250.

The previous prime is 134538241. The next prime is 134538263. The reversal of 134538251 is 152835431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134538251 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134538241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67269125 + 67269126.

It is an arithmetic number, because the mean of its divisors is an integer number (67269126).

Almost surely, 2^134538251 is an apocalyptic number.

134538251 is a deficient number, since it is larger than the sum of its proper divisors (1).

134538251 is an equidigital number, since it uses as much as digits as its factorization.

134538251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 32.

The square root of 134538251 is about 11599.0625052200. The cubic root of 134538251 is about 512.4072420665.

The spelling of 134538251 in words is "one hundred thirty-four million, five hundred thirty-eight thousand, two hundred fifty-one".