1206261 has 24 divisors (see below), whose sum is σ = 2044224. Its totient is φ = 671040.

The previous prime is 1206259. The next prime is 1206263. The reversal of 1206261 is 1626021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1206259) and next prime (1206263).

It is not a de Polignac number, because 1206261 - 2¹ = 1206259 is a prime.

1206261 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2350 + ... + 2816.

It is an arithmetic number, because the mean of its divisors is an integer number (85176).

2^1206261 is an apocalyptic number.

It is an amenable number.

1206261 is a deficient number, since it is larger than the sum of its proper divisors (837963).

1206261 is a wasteful number, since it uses less digits than its factorization.

1206261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1206261 is about 1098.2991395790. The cubic root of 1206261 is about 106.4503504605.

The spelling of 1206261 in words is "one million, two hundred six thousand, two hundred sixty-one".