1145508547 has 2 divisors, whose sum is σ = 1145508548. Its totient is φ = 1145508546.

The previous prime is 1145508527. The next prime is 1145508571. The reversal of 1145508547 is 7458055411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145508547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145508527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572754273 + 572754274.

It is an arithmetic number, because the mean of its divisors is an integer number (572754274).

Almost surely, 2^1145508547 is an apocalyptic number.

1145508547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145508547 is an equidigital number, since it uses as much as digits as its factorization.

1145508547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 1145508547 is about 33845.3622672295. The cubic root of 1145508547 is about 1046.3238175605.

The spelling of 1145508547 in words is "one billion, one hundred forty-five million, five hundred eight thousand, five hundred forty-seven".