1281461 has 4 divisors (see below), whose sum is σ = 1288800. Its totient is φ = 1274124.

The previous prime is 1281457. The next prime is 1281463. The reversal of 1281461 is 1641821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1281461 - 2² = 1281457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1281463) 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, 3401 + ... + 3758.

It is an arithmetic number, because the mean of its divisors is an integer number (322200).

2^1281461 is an apocalyptic number.

It is an amenable number.

1281461 is a deficient number, since it is larger than the sum of its proper divisors (7339).

1281461 is an equidigital number, since it uses as much as digits as its factorization.

1281461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7338.

The product of its digits is 384, while the sum is 23.

The square root of 1281461 is about 1132.0163426382. The cubic root of 1281461 is about 108.6179989997.

The spelling of 1281461 in words is "one million, two hundred eighty-one thousand, four hundred sixty-one".