1261270 has 8 divisors (see below), whose sum is σ = 2270304. Its totient is φ = 504504.

The previous prime is 1261261. The next prime is 1261279. The reversal of 1261270 is 721621.

It is an interprime number because it is at equal distance from previous prime (1261261) and next prime (1261279).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261279) 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 3 ways as a sum of consecutive naturals, for example, 63054 + ... + 63073.

It is an arithmetic number, because the mean of its divisors is an integer number (283788).

2^1261270 is an apocalyptic number.

1261270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1261270 is a deficient number, since it is larger than the sum of its proper divisors (1009034).

1261270 is a wasteful number, since it uses less digits than its factorization.

1261270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126134.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1261270 is about 1123.0627765179. The cubic root of 1261270 is about 108.0445061195.

Adding to 1261270 its reverse (721621), we get a palindrome (1982891).

The spelling of 1261270 in words is "one million, two hundred sixty-one thousand, two hundred seventy".