1140471481 has 4 divisors (see below), whose sum is σ = 1156094452. Its totient is φ = 1124848512.

The previous prime is 1140471473. The next prime is 1140471511. The reversal of 1140471481 is 1841740411.

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

It can be written as a sum of positive squares in 2 ways, for example, as 694586025 + 445885456 = 26355^2 + 21116^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140471481 - 2³ = 1140471473 is a prime.

It is a super-2 number, since 2×1140471481² = 2601350397948666722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140471421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7811376 + ... + 7811521.

It is an arithmetic number, because the mean of its divisors is an integer number (289023613).

Almost surely, 2^1140471481 is an apocalyptic number.

It is an amenable number.

1140471481 is a deficient number, since it is larger than the sum of its proper divisors (15622971).

1140471481 is an equidigital number, since it uses as much as digits as its factorization.

1140471481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15622970.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 1140471481 is about 33770.8673415416. The cubic root of 1140471481 is about 1044.7879215237.

The spelling of 1140471481 in words is "one billion, one hundred forty million, four hundred seventy-one thousand, four hundred eighty-one".