1151205355 has 4 divisors (see below), whose sum is σ = 1381446432. Its totient is φ = 920964280.

The previous prime is 1151205317. The next prime is 1151205413. The reversal of 1151205355 is 5535021511.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1151205355 - 2¹⁹ = 1150681067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115120531 + ... + 115120540.

It is an arithmetic number, because the mean of its divisors is an integer number (345361608).

Almost surely, 2^1151205355 is an apocalyptic number.

1151205355 is a deficient number, since it is larger than the sum of its proper divisors (230241077).

1151205355 is an equidigital number, since it uses as much as digits as its factorization.

1151205355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230241076.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 1151205355 is about 33929.4172511112. The cubic root of 1151205355 is about 1048.0554653137.

Adding to 1151205355 its reverse (5535021511), we get a palindrome (6686226866).

The spelling of 1151205355 in words is "one billion, one hundred fifty-one million, two hundred five thousand, three hundred fifty-five".