1140225285 has 16 divisors (see below), whose sum is σ = 1829450880. Its totient is φ = 606423360.

The previous prime is 1140225269. The next prime is 1140225301. The reversal of 1140225285 is 5825220411.

It is an interprime number because it is at equal distance from previous prime (1140225269) and next prime (1140225301).

It is not a de Polignac number, because 1140225285 - 2⁴ = 1140225269 is a prime.

It is a super-2 number, since 2×1140225285² = 2600227401106662450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100486 + ... + 111255.

It is an arithmetic number, because the mean of its divisors is an integer number (114340680).

Almost surely, 2^1140225285 is an apocalyptic number.

1140225285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1140225285 is a deficient number, since it is larger than the sum of its proper divisors (689225595).

1140225285 is a wasteful number, since it uses less digits than its factorization.

1140225285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212108.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 1140225285 is about 33767.2220503849. Note that the first 3 decimals coincide. The cubic root of 1140225285 is about 1044.7127359177.

Adding to 1140225285 its reverse (5825220411), we get a palindrome (6965445696).

The spelling of 1140225285 in words is "one billion, one hundred forty million, two hundred twenty-five thousand, two hundred eighty-five".