1146047557 has 4 divisors (see below), whose sum is σ = 1146614976. Its totient is φ = 1145480140.

The previous prime is 1146047527. The next prime is 1146047579. The reversal of 1146047557 is 7557406411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7557406411 = 2239 ⋅3375349.

It is a cyclic number.

It is not a de Polignac number, because 1146047557 - 2⁷ = 1146047429 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146047527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280669 + ... + 284722.

It is an arithmetic number, because the mean of its divisors is an integer number (286653744).

Almost surely, 2^1146047557 is an apocalyptic number.

It is an amenable number.

1146047557 is a deficient number, since it is larger than the sum of its proper divisors (567419).

1146047557 is an equidigital number, since it uses as much as digits as its factorization.

1146047557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567418.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 1146047557 is about 33853.3241646961. The cubic root of 1146047557 is about 1046.4879049629.

The spelling of 1146047557 in words is "one billion, one hundred forty-six million, forty-seven thousand, five hundred fifty-seven".