61134547 has 2 divisors, whose sum is σ = 61134548. Its totient is φ = 61134546.

The previous prime is 61134497. The next prime is 61134553. The reversal of 61134547 is 74543116.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61134547 is a prime.

It is not a weakly prime, because it can be changed into another prime (61134587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30567273 + 30567274.

It is an arithmetic number, because the mean of its divisors is an integer number (30567274).

Almost surely, 2^61134547 is an apocalyptic number.

61134547 is a deficient number, since it is larger than the sum of its proper divisors (1).

61134547 is an equidigital number, since it uses as much as digits as its factorization.

61134547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 61134547 is about 7818.8584205113. The cubic root of 61134547 is about 393.9389286671.

The spelling of 61134547 in words is "sixty-one million, one hundred thirty-four thousand, five hundred forty-seven".