1151212235 has 4 divisors (see below), whose sum is σ = 1381454688. Its totient is φ = 920969784.

The previous prime is 1151212229. The next prime is 1151212243. The reversal of 1151212235 is 5322121511.

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

It is a cyclic number.

It is not a de Polignac number, because 1151212235 - 2⁸ = 1151211979 is a prime.

It is a super-3 number, since 3×1151212235³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1151212235.

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, 115121219 + ... + 115121228.

It is an arithmetic number, because the mean of its divisors is an integer number (345363672).

Almost surely, 2^1151212235 is an apocalyptic number.

1151212235 is a deficient number, since it is larger than the sum of its proper divisors (230242453).

1151212235 is an equidigital number, since it uses as much as digits as its factorization.

1151212235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230242452.

The product of its digits is 600, while the sum is 23.

The square root of 1151212235 is about 33929.5186379058. The cubic root of 1151212235 is about 1048.0575531564.

Adding to 1151212235 its reverse (5322121511), we get a palindrome (6473333746).

The spelling of 1151212235 in words is "one billion, one hundred fifty-one million, two hundred twelve thousand, two hundred thirty-five".