1140263121 has 8 divisors (see below), whose sum is σ = 1555708000. Its totient is φ = 742496832.

The previous prime is 1140263029. The next prime is 1140263129. The reversal of 1140263121 is 1213620411.

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

It is not a de Polignac number, because 1140263121 - 2¹⁹ = 1139738833 is a prime.

It is a super-2 number, since 2×1140263121² = 2600399970225321282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140263129) 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, 4419496 + ... + 4419753.

It is an arithmetic number, because the mean of its divisors is an integer number (194463500).

Almost surely, 2^1140263121 is an apocalyptic number.

It is an amenable number.

1140263121 is a deficient number, since it is larger than the sum of its proper divisors (415444879).

1140263121 is an equidigital number, since it uses as much as digits as its factorization.

1140263121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8839295.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1140263121 is about 33767.7822931859. The cubic root of 1140263121 is about 1044.7242913282.

Adding to 1140263121 its reverse (1213620411), we get a palindrome (2353883532).

The spelling of 1140263121 in words is "one billion, one hundred forty million, two hundred sixty-three thousand, one hundred twenty-one".