134547551 has 2 divisors, whose sum is σ = 134547552. Its totient is φ = 134547550.

The previous prime is 134547509. The next prime is 134547583. The reversal of 134547551 is 155745431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134547551 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134547451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67273775 + 67273776.

It is an arithmetic number, because the mean of its divisors is an integer number (67273776).

Almost surely, 2^134547551 is an apocalyptic number.

134547551 is a deficient number, since it is larger than the sum of its proper divisors (1).

134547551 is an equidigital number, since it uses as much as digits as its factorization.

134547551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 35.

The square root of 134547551 is about 11599.4633927609. The cubic root of 134547551 is about 512.4190485664.

The spelling of 134547551 in words is "one hundred thirty-four million, five hundred forty-seven thousand, five hundred fifty-one".