1254621 has 4 divisors (see below), whose sum is σ = 1672832. Its totient is φ = 836412.

The previous prime is 1254619. The next prime is 1254623. The reversal of 1254621 is 1264521.

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 an interprime number because it is at equal distance from previous prime (1254619) and next prime (1254623).

It is not a de Polignac number, because 1254621 - 2¹ = 1254619 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209101 + ... + 209106.

It is an arithmetic number, because the mean of its divisors is an integer number (418208).

2^1254621 is an apocalyptic number.

It is an amenable number.

1254621 is a deficient number, since it is larger than the sum of its proper divisors (418211).

1254621 is an equidigital number, since it uses as much as digits as its factorization.

1254621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418210.

The product of its digits is 480, while the sum is 21.

The square root of 1254621 is about 1120.0986563692. The cubic root of 1254621 is about 107.8543131660.

The spelling of 1254621 in words is "one million, two hundred fifty-four thousand, six hundred twenty-one".