1147057121 has 12 divisors (see below), whose sum is σ = 1365365232. Its totient is φ = 960325128.

The previous prime is 1147057069. The next prime is 1147057147. The reversal of 1147057121 is 1217507411.

It is a de Polignac number, because none of the positive numbers 2^k-1147057121 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1147057421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270095 + ... + 274308.

It is an arithmetic number, because the mean of its divisors is an integer number (113780436).

Almost surely, 2^1147057121 is an apocalyptic number.

It is an amenable number.

1147057121 is a deficient number, since it is larger than the sum of its proper divisors (218308111).

1147057121 is an equidigital number, since it uses as much as digits as its factorization.

1147057121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544460 (or 544453 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 1147057121 is about 33868.2317371309. The cubic root of 1147057121 is about 1046.7951017671.

The spelling of 1147057121 in words is "one billion, one hundred forty-seven million, fifty-seven thousand, one hundred twenty-one".