1140625331 has 2 divisors, whose sum is σ = 1140625332. Its totient is φ = 1140625330.

The previous prime is 1140625327. The next prime is 1140625351. The reversal of 1140625331 is 1335260411.

It is a weak prime.

It is an emirp because it is prime and its reverse (1335260411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1140625331 - 2² = 1140625327 is a prime.

It is a super-2 number, since 2×1140625331² = 2602052291437719122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1140625331.

It is not a weakly prime, because it can be changed into another prime (1140625351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570312665 + 570312666.

It is an arithmetic number, because the mean of its divisors is an integer number (570312666).

Almost surely, 2^1140625331 is an apocalyptic number.

1140625331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140625331 is an equidigital number, since it uses as much as digits as its factorization.

1140625331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1140625331 is about 33773.1451156092. The cubic root of 1140625331 is about 1044.8349001628.

Adding to 1140625331 its reverse (1335260411), we get a palindrome (2475885742).

The spelling of 1140625331 in words is "one billion, one hundred forty million, six hundred twenty-five thousand, three hundred thirty-one".