1140361421 has 8 divisors (see below), whose sum is σ = 1149627360. Its totient is φ = 1131110928.

The previous prime is 1140361393. The next prime is 1140361447. The reversal of 1140361421 is 1241630411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140361421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140361471) 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, 178535 + ... + 184811.

It is an arithmetic number, because the mean of its divisors is an integer number (143703420).

Almost surely, 2^1140361421 is an apocalyptic number.

It is an amenable number.

1140361421 is a deficient number, since it is larger than the sum of its proper divisors (9265939).

1140361421 is a wasteful number, since it uses less digits than its factorization.

1140361421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1140361421 is about 33769.2377912206. The cubic root of 1140361421 is about 1044.7543117229.

Adding to 1140361421 its reverse (1241630411), we get a palindrome (2381991832).

The spelling of 1140361421 in words is "one billion, one hundred forty million, three hundred sixty-one thousand, four hundred twenty-one".