1147350557 has 4 divisors (see below), whose sum is σ = 1163510496. Its totient is φ = 1131190620.

The previous prime is 1147350433. The next prime is 1147350559. The reversal of 1147350557 is 7550537411.

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.

It is a cyclic number.

It is not a de Polignac number, because 1147350557 - 2²² = 1143156253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1147350557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147350559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8079863 + ... + 8080004.

It is an arithmetic number, because the mean of its divisors is an integer number (290877624).

Almost surely, 2^1147350557 is an apocalyptic number.

It is an amenable number.

1147350557 is a deficient number, since it is larger than the sum of its proper divisors (16159939).

1147350557 is an equidigital number, since it uses as much as digits as its factorization.

1147350557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16159938.

The product of its (nonzero) digits is 73500, while the sum is 38.

The square root of 1147350557 is about 33872.5634843305. The cubic root of 1147350557 is about 1046.8843566010.

Adding to 1147350557 its reverse (7550537411), we get a palindrome (8697887968).

The spelling of 1147350557 in words is "one billion, one hundred forty-seven million, three hundred fifty thousand, five hundred fifty-seven".