1156213351 has 8 divisors (see below), whose sum is σ = 1160278560. Its totient is φ = 1152156192.

The previous prime is 1156213349. The next prime is 1156213361. The reversal of 1156213351 is 1533126511.

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 1156213351 - 2¹ = 1156213349 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 (1156213361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432846 + ... + 435508.

It is an arithmetic number, because the mean of its divisors is an integer number (145034820).

Almost surely, 2^1156213351 is an apocalyptic number.

1156213351 is a deficient number, since it is larger than the sum of its proper divisors (4065209).

1156213351 is an equidigital number, since it uses as much as digits as its factorization.

1156213351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025.

The product of its digits is 2700, while the sum is 28.

The square root of 1156213351 is about 34003.1373699546. The cubic root of 1156213351 is about 1049.5730239776.

Adding to 1156213351 its reverse (1533126511), we get a palindrome (2689339862).

The spelling of 1156213351 in words is "one billion, one hundred fifty-six million, two hundred thirteen thousand, three hundred fifty-one".