1133445657 has 16 divisors (see below), whose sum is σ = 1572431040. Its totient is φ = 725347392.

The previous prime is 1133445647. The next prime is 1133445661. The reversal of 1133445657 is 7565443311.

It is not a de Polignac number, because 1133445657 - 2²⁶ = 1066336793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1133445647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22603 + ... + 52704.

It is an arithmetic number, because the mean of its divisors is an integer number (98276940).

Almost surely, 2^1133445657 is an apocalyptic number.

It is an amenable number.

1133445657 is a deficient number, since it is larger than the sum of its proper divisors (438985383).

1133445657 is a wasteful number, since it uses less digits than its factorization.

1133445657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75512.

The product of its digits is 151200, while the sum is 39.

The square root of 1133445657 is about 33666.6846749127. The cubic root of 1133445657 is about 1042.6380441620.

Adding to 1133445657 its reverse (7565443311), we get a palindrome (8698888968).

The spelling of 1133445657 in words is "one billion, one hundred thirty-three million, four hundred forty-five thousand, six hundred fifty-seven".