61545347 has 2 divisors, whose sum is σ = 61545348. Its totient is φ = 61545346.

The previous prime is 61545331. The next prime is 61545359. The reversal of 61545347 is 74354516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61545347 - 2⁴ = 61545331 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61545307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30772673 + 30772674.

It is an arithmetic number, because the mean of its divisors is an integer number (30772674).

Almost surely, 2^61545347 is an apocalyptic number.

61545347 is a deficient number, since it is larger than the sum of its proper divisors (1).

61545347 is an equidigital number, since it uses as much as digits as its factorization.

61545347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 35.

The square root of 61545347 is about 7845.0842570364. The cubic root of 61545347 is about 394.8193309319.

The spelling of 61545347 in words is "sixty-one million, five hundred forty-five thousand, three hundred forty-seven".