1262981 has 4 divisors (see below), whose sum is σ = 1337292. Its totient is φ = 1188672.

The previous prime is 1262957. The next prime is 1263007. The reversal of 1262981 is 1892621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 390625 + 872356 = 625^2 + 934^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262981 - 2⁶ = 1262917 is a prime.

It is a super-2 number, since 2×1262981² = 3190242012722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37130 + ... + 37163.

It is an arithmetic number, because the mean of its divisors is an integer number (334323).

2^1262981 is an apocalyptic number.

It is an amenable number.

1262981 is a deficient number, since it is larger than the sum of its proper divisors (74311).

1262981 is an equidigital number, since it uses as much as digits as its factorization.

1262981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74310.

The product of its digits is 1728, while the sum is 29.

The square root of 1262981 is about 1123.8242745198. The cubic root of 1262981 is about 108.0933406591.

The spelling of 1262981 in words is "one million, two hundred sixty-two thousand, nine hundred eighty-one".