1151217057 has 4 divisors (see below), whose sum is σ = 1534956080. Its totient is φ = 767478036.

The previous prime is 1151217017. The next prime is 1151217059. The reversal of 1151217057 is 7507121511.

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 not a de Polignac number, because 1151217057 - 2⁷ = 1151216929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151217059) 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, 191869507 + ... + 191869512.

It is an arithmetic number, because the mean of its divisors is an integer number (383739020).

Almost surely, 2^1151217057 is an apocalyptic number.

It is an amenable number.

1151217057 is a deficient number, since it is larger than the sum of its proper divisors (383739023).

1151217057 is an equidigital number, since it uses as much as digits as its factorization.

1151217057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383739022.

The product of its (nonzero) digits is 2450, while the sum is 30.

The square root of 1151217057 is about 33929.5896969003. The cubic root of 1151217057 is about 1048.0590164622.

Adding to 1151217057 its reverse (7507121511), we get a palindrome (8658338568).

The spelling of 1151217057 in words is "one billion, one hundred fifty-one million, two hundred seventeen thousand, fifty-seven".