1140100405 has 8 divisors (see below), whose sum is σ = 1369431000. Its totient is φ = 911206656.

The previous prime is 1140100399. The next prime is 1140100411. The reversal of 1140100405 is 5040010411.

It is an interprime number because it is at equal distance from previous prime (1140100399) and next prime (1140100411).

It can be written as a sum of positive squares in 4 ways, for example, as 141919569 + 998180836 = 11913^2 + 31594^2 .

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 1140100405 - 2³ = 1140100397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103440 + ... + 113929.

It is an arithmetic number, because the mean of its divisors is an integer number (171178875).

Almost surely, 2^1140100405 is an apocalyptic number.

It is an amenable number.

1140100405 is a deficient number, since it is larger than the sum of its proper divisors (229330595).

1140100405 is a wasteful number, since it uses less digits than its factorization.

1140100405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218423.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1140100405 is about 33765.3728692576. The cubic root of 1140100405 is about 1044.6745947739.

Adding to 1140100405 its reverse (5040010411), we get a palindrome (6180110816).

The spelling of 1140100405 in words is "one billion, one hundred forty million, one hundred thousand, four hundred five".