1140244431555 has 8 divisors (see below), whose sum is σ = 1824391090512. Its totient is φ = 608130363488.

The previous prime is 1140244431551. The next prime is 1140244431559. The reversal of 1140244431555 is 5551344420411.

It is an interprime number because it is at equal distance from previous prime (1140244431551) and next prime (1140244431559).

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 1140244431555 - 2² = 1140244431551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1140244431551) 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, 38008147704 + ... + 38008147733.

It is an arithmetic number, because the mean of its divisors is an integer number (228048886314).

Almost surely, 2^{1140244431555} is an apocalyptic number.

1140244431555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1140244431555 is a deficient number, since it is larger than the sum of its proper divisors (684146658957).

1140244431555 is an equidigital number, since it uses as much as digits as its factorization.

1140244431555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76016295445.

The product of its (nonzero) digits is 192000, while the sum is 39.

Adding to 1140244431555 its reverse (5551344420411), we get a palindrome (6691588851966).

The spelling of 1140244431555 in words is "one trillion, one hundred forty billion, two hundred forty-four million, four hundred thirty-one thousand, five hundred fifty-five".