1151403205 has 8 divisors (see below), whose sum is σ = 1415383704. Its totient is φ = 898656000.

The previous prime is 1151403179. The next prime is 1151403221. The reversal of 1151403205 is 5023041511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 66161956 + 1085241249 = 8134^2 + 32943^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1151403205 - 2²⁹ = 614532293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2808096 + ... + 2808505.

It is an arithmetic number, because the mean of its divisors is an integer number (176922963).

Almost surely, 2^1151403205 is an apocalyptic number.

It is an amenable number.

1151403205 is a deficient number, since it is larger than the sum of its proper divisors (263980499).

1151403205 is an equidigital number, since it uses as much as digits as its factorization.

1151403205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616647.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1151403205 is about 33932.3327373760. The cubic root of 1151403205 is about 1048.1155026461.

Adding to 1151403205 its reverse (5023041511), we get a palindrome (6174444716).

The spelling of 1151403205 in words is "one billion, one hundred fifty-one million, four hundred three thousand, two hundred five".