1047111481 has 8 divisors (see below), whose sum is σ = 1193991624. Its totient is φ = 909707520.

The previous prime is 1047111419. The next prime is 1047111563. The reversal of 1047111481 is 1841117401.

It can be written as a sum of positive squares in 4 ways, for example, as 115885225 + 931226256 = 10765^2 + 30516^2 .

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 1047111481 - 2⁹ = 1047110969 is a prime.

It is a super-2 number, since 2×1047111481² = 2192884907284026722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047111181) 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, 2368810 + ... + 2369251.

It is an arithmetic number, because the mean of its divisors is an integer number (149248953).

Almost surely, 2^1047111481 is an apocalyptic number.

It is an amenable number.

1047111481 is a deficient number, since it is larger than the sum of its proper divisors (146880143).

1047111481 is a wasteful number, since it uses less digits than its factorization.

1047111481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738091.

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 1047111481 is about 32359.1019807411. The cubic root of 1047111481 is about 1015.4634753915.

Adding to 1047111481 its reverse (1841117401), we get a palindrome (2888228882).

It can be divided in two parts, 10471 and 11481, that added together give a cube (21952 = 28³).

The spelling of 1047111481 in words is "one billion, forty-seven million, one hundred eleven thousand, four hundred eighty-one".