1141440401 has 8 divisors (see below), whose sum is σ = 1210161384. Its totient is φ = 1072894720.

The previous prime is 1141440379. The next prime is 1141440439. The reversal of 1141440401 is 1040441411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 99700225 + 1041740176 = 9985^2 + 32276^2 .

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 1141440401 - 2¹⁴ = 1141424017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141440101) 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, 30290 + ... + 56571.

It is an arithmetic number, because the mean of its divisors is an integer number (151270173).

Almost surely, 2^1141440401 is an apocalyptic number.

It is an amenable number.

1141440401 is a deficient number, since it is larger than the sum of its proper divisors (68720983).

1141440401 is an equidigital number, since it uses as much as digits as its factorization.

1141440401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87651.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1141440401 is about 33785.2097965959. The cubic root of 1141440401 is about 1045.0837142096.

Adding to 1141440401 its reverse (1040441411), we get a palindrome (2181881812).

It can be divided in two parts, 11414 and 40401, that added together give a palindrome (51815).

The spelling of 1141440401 in words is "one billion, one hundred forty-one million, four hundred forty thousand, four hundred one".