1210883285 has 8 divisors (see below), whose sum is σ = 1453248216. Its totient is φ = 968581120.

The previous prime is 1210883279. The next prime is 1210883291. The reversal of 1210883285 is 5823880121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1210883279) and next prime (1210883291).

It can be written as a sum of positive squares in 4 ways, for example, as 14691889 + 1196191396 = 3833^2 + 34586^2 .

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

It is not a de Polignac number, because 1210883285 - 2¹⁰ = 1210882261 is a prime.

It is a Duffinian number.

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, 59645 + ... + 77325.

It is an arithmetic number, because the mean of its divisors is an integer number (181656027).

Almost surely, 2^1210883285 is an apocalyptic number.

It is an amenable number.

1210883285 is a deficient number, since it is larger than the sum of its proper divisors (242364931).

1210883285 is a wasteful number, since it uses less digits than its factorization.

1210883285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31383.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 1210883285 is about 34797.7482748525. The cubic root of 1210883285 is about 1065.8614658398.

The spelling of 1210883285 in words is "one billion, two hundred ten million, eight hundred eighty-three thousand, two hundred eighty-five".