1151659857 has 4 divisors (see below), whose sum is σ = 1535546480. Its totient is φ = 767773236.

The previous prime is 1151659853. The next prime is 1151659877. The reversal of 1151659857 is 7589561511.

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 1151659857 - 2² = 1151659853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151659853) 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, 191943307 + ... + 191943312.

It is an arithmetic number, because the mean of its divisors is an integer number (383886620).

Almost surely, 2^1151659857 is an apocalyptic number.

It is an amenable number.

1151659857 is a deficient number, since it is larger than the sum of its proper divisors (383886623).

1151659857 is an equidigital number, since it uses as much as digits as its factorization.

1151659857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383886622.

The product of its digits is 378000, while the sum is 48.

The square root of 1151659857 is about 33936.1143474028. The cubic root of 1151659857 is about 1048.1933731246.

The spelling of 1151659857 in words is "one billion, one hundred fifty-one million, six hundred fifty-nine thousand, eight hundred fifty-seven".