1151224401 has 16 divisors (see below), whose sum is σ = 1627309568. Its totient is φ = 722649600.

The previous prime is 1151224379. The next prime is 1151224409. The reversal of 1151224401 is 1044221511.

It is not a de Polignac number, because 1151224401 - 2⁵ = 1151224369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151224409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163840 + ... + 170721.

It is an arithmetic number, because the mean of its divisors is an integer number (101706848).

Almost surely, 2^1151224401 is an apocalyptic number.

It is an amenable number.

1151224401 is a deficient number, since it is larger than the sum of its proper divisors (476085167).

1151224401 is a wasteful number, since it uses less digits than its factorization.

1151224401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334632.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1151224401 is about 33929.6979208480. The cubic root of 1151224401 is about 1048.0612450975.

Adding to 1151224401 its reverse (1044221511), we get a palindrome (2195445912).

The spelling of 1151224401 in words is "one billion, one hundred fifty-one million, two hundred twenty-four thousand, four hundred one".