1151345213 has 8 divisors (see below), whose sum is σ = 1226839032. Its totient is φ = 1076714496.

The previous prime is 1151345203. The next prime is 1151345257. The reversal of 1151345213 is 3125431511.

It can be written as a sum of positive squares in 4 ways, for example, as 398281849 + 753063364 = 19957^2 + 27442^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1151345213 - 2⁴ = 1151345197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151345203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213020 + ... + 218357.

It is an arithmetic number, because the mean of its divisors is an integer number (153354879).

Almost surely, 2^1151345213 is an apocalyptic number.

It is an amenable number.

1151345213 is a deficient number, since it is larger than the sum of its proper divisors (75493819).

1151345213 is a wasteful number, since it uses less digits than its factorization.

1151345213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431551.

The product of its digits is 1800, while the sum is 26.

The square root of 1151345213 is about 33931.4782024008. The cubic root of 1151345213 is about 1048.0979057596.

Adding to 1151345213 its reverse (3125431511), we get a palindrome (4276776724).

The spelling of 1151345213 in words is "one billion, one hundred fifty-one million, three hundred forty-five thousand, two hundred thirteen".