1151344481 has 8 divisors (see below), whose sum is σ = 1316040384. Its totient is φ = 986703120.

The previous prime is 1151344471. The next prime is 1151344517. The reversal of 1151344481 is 1844431511.

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 1151344481 - 2⁶ = 1151344417 is a prime.

It is a super-2 number, since 2×1151344481² = 2651188227858318722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151344421) 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, 53951 + ... + 72203.

It is an arithmetic number, because the mean of its divisors is an integer number (164505048).

Almost surely, 2^1151344481 is an apocalyptic number.

It is an amenable number.

1151344481 is a deficient number, since it is larger than the sum of its proper divisors (164695903).

1151344481 is an equidigital number, since it uses as much as digits as its factorization.

1151344481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27271.

The product of its digits is 7680, while the sum is 32.

The square root of 1151344481 is about 33931.4674159548. The cubic root of 1151344481 is about 1048.0976836403.

Adding to 1151344481 its reverse (1844431511), we get a palindrome (2995775992).

The spelling of 1151344481 in words is "one billion, one hundred fifty-one million, three hundred forty-four thousand, four hundred eighty-one".