1213485 has 48 divisors (see below), whose sum is σ = 2451456. Its totient is φ = 508032.

The previous prime is 1213483. The next prime is 1213517. The reversal of 1213485 is 5843121.

It is not a de Polignac number, because 1213485 - 2¹ = 1213483 is a prime.

1213485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9492 + ... + 9618.

It is an arithmetic number, because the mean of its divisors is an integer number (51072).

2^1213485 is an apocalyptic number.

1213485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1213485 is an abundant number, since it is smaller than the sum of its proper divisors (1237971).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213485 is a wasteful number, since it uses less digits than its factorization.

1213485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 155 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 1213485 is about 1101.5829519378. The cubic root of 1213485 is about 106.6624293022.

The spelling of 1213485 in words is "one million, two hundred thirteen thousand, four hundred eighty-five".