1261875 has 20 divisors (see below), whose sum is σ = 2105576. Its totient is φ = 672000.

The previous prime is 1261861. The next prime is 1261889. The reversal of 1261875 is 5781621.

It is an interprime number because it is at equal distance from previous prime (1261861) and next prime (1261889).

It is not a de Polignac number, because 1261875 - 2⁷ = 1261747 is a prime.

It is a Duffinian number.

1261875 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1539 + ... + 2211.

2^1261875 is an apocalyptic number.

1261875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1261875 is a deficient number, since it is larger than the sum of its proper divisors (843701).

1261875 is an frugal number, since it uses more digits than its factorization.

1261875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 681 counting only the distinct ones).

The product of its digits is 3360, while the sum is 30.

The square root of 1261875 is about 1123.3320969330. The cubic root of 1261875 is about 108.0617787831.

The spelling of 1261875 in words is "one million, two hundred sixty-one thousand, eight hundred seventy-five".