1213055485 has 8 divisors (see below), whose sum is σ = 1541294136. Its totient is φ = 913359360.

The previous prime is 1213055483. The next prime is 1213055509. The reversal of 1213055485 is 5845503121.

It can be written as a sum of positive squares in 4 ways, for example, as 33339076 + 1179716409 = 5774^2 + 34347^2 .

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

It is not a de Polignac number, because 1213055485 - 2¹ = 1213055483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213055485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213055483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7135536 + ... + 7135705.

It is an arithmetic number, because the mean of its divisors is an integer number (192661767).

Almost surely, 2^1213055485 is an apocalyptic number.

It is an amenable number.

1213055485 is a deficient number, since it is larger than the sum of its proper divisors (328238651).

1213055485 is a wasteful number, since it uses less digits than its factorization.

1213055485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14271263.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 1213055485 is about 34828.9460793748. The cubic root of 1213055485 is about 1066.4984337002.

The spelling of 1213055485 in words is "one billion, two hundred thirteen million, fifty-five thousand, four hundred eighty-five".