1146555547 has 2 divisors, whose sum is σ = 1146555548. Its totient is φ = 1146555546.

The previous prime is 1146555503. The next prime is 1146555559. The reversal of 1146555547 is 7455556411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1146555547 - 2¹⁹ = 1146031259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1146558547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573277773 + 573277774.

It is an arithmetic number, because the mean of its divisors is an integer number (573277774).

Almost surely, 2^1146555547 is an apocalyptic number.

1146555547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1146555547 is an equidigital number, since it uses as much as digits as its factorization.

1146555547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420000, while the sum is 43.

The square root of 1146555547 is about 33860.8261417231. The cubic root of 1146555547 is about 1046.6425020566.

The spelling of 1146555547 in words is "one billion, one hundred forty-six million, five hundred fifty-five thousand, five hundred forty-seven".