1254921 has 8 divisors (see below), whose sum is σ = 1678464. Its totient is φ = 834000.

The previous prime is 1254907. The next prime is 1254941. The reversal of 1254921 is 1294521.

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

It is not a de Polignac number, because 1254921 - 2⁷ = 1254793 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1254891 and 1254900.

It is not an unprimeable number, because it can be changed into a prime (1254941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296 + ... + 2046.

It is an arithmetic number, because the mean of its divisors is an integer number (209808).

2^1254921 is an apocalyptic number.

It is an amenable number.

1254921 is a deficient number, since it is larger than the sum of its proper divisors (423543).

1254921 is an equidigital number, since it uses as much as digits as its factorization.

1254921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its digits is 720, while the sum is 24.

The square root of 1254921 is about 1120.2325651399. The cubic root of 1254921 is about 107.8629090462.

The spelling of 1254921 in words is "one million, two hundred fifty-four thousand, nine hundred twenty-one".