1081223895 has 8 divisors (see below), whose sum is σ = 1729958256. Its totient is φ = 576652736.

The previous prime is 1081223881. The next prime is 1081223933. The reversal of 1081223895 is 5983221801.

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 1081223895 - 2⁶ = 1081223831 is a prime.

It is a super-2 number, since 2×1081223895² = 2338090222237942050, 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 7 ways as a sum of consecutive naturals, for example, 36040782 + ... + 36040811.

It is an arithmetic number, because the mean of its divisors is an integer number (216244782).

Almost surely, 2^1081223895 is an apocalyptic number.

1081223895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1081223895 is a deficient number, since it is larger than the sum of its proper divisors (648734361).

1081223895 is an equidigital number, since it uses as much as digits as its factorization.

1081223895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72081601.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1081223895 is about 32881.9691472393. The cubic root of 1081223895 is about 1026.3729829970.

The spelling of 1081223895 in words is "one billion, eighty-one million, two hundred twenty-three thousand, eight hundred ninety-five".