1224272085 has 32 divisors (see below), whose sum is σ = 2100349440. Its totient is φ = 606747648.

The previous prime is 1224272029. The next prime is 1224272089. The reversal of 1224272085 is 5802724221.

1224272085 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1224272085 - 2¹¹ = 1224270037 is a prime.

It is a super-2 number, since 2×1224272085² = 2997684276220494450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224272089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10242 + ... + 50531.

It is an arithmetic number, because the mean of its divisors is an integer number (65635920).

Almost surely, 2^1224272085 is an apocalyptic number.

1224272085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1224272085 is a deficient number, since it is larger than the sum of its proper divisors (876077355).

1224272085 is a wasteful number, since it uses less digits than its factorization.

1224272085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60877.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 1224272085 is about 34989.5996690445. The cubic root of 1224272085 is about 1069.7755038962.

The spelling of 1224272085 in words is "one billion, two hundred twenty-four million, two hundred seventy-two thousand, eighty-five".