1151121455 has 8 divisors (see below), whose sum is σ = 1506922704. Its totient is φ = 837179200.

The previous prime is 1151121443. The next prime is 1151121487. The reversal of 1151121455 is 5541211511.

It is a happy number.

1151121455 is nontrivially palindromic in base 3.

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

It is a de Polignac number, because none of the positive numbers 2^k-1151121455 is a prime.

It is a super-2 number, since 2×1151121455² = 2650161208322634050, which contains 22 as substring.

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, 10464686 + ... + 10464795.

It is an arithmetic number, because the mean of its divisors is an integer number (188365338).

Almost surely, 2^1151121455 is an apocalyptic number.

1151121455 is a deficient number, since it is larger than the sum of its proper divisors (355801249).

1151121455 is a wasteful number, since it uses less digits than its factorization.

1151121455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20929497.

The product of its digits is 1000, while the sum is 26.

The square root of 1151121455 is about 33928.1808383532. The cubic root of 1151121455 is about 1048.0300038877.

Adding to 1151121455 its reverse (5541211511), we get a palindrome (6692332966).

The spelling of 1151121455 in words is "one billion, one hundred fifty-one million, one hundred twenty-one thousand, four hundred fifty-five".