1451421 has 24 divisors (see below), whose sum is σ = 2227680. Its totient is φ = 909216.

The previous prime is 1451393. The next prime is 1451423. The reversal of 1451421 is 1241541.

It is not a de Polignac number, because 1451421 - 2¹⁴ = 1435037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1451394 and 1451403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451423) 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 23 ways as a sum of consecutive naturals, for example, 17446 + ... + 17528.

It is an arithmetic number, because the mean of its divisors is an integer number (92820).

2^1451421 is an apocalyptic number.

It is an amenable number.

1451421 is a deficient number, since it is larger than the sum of its proper divisors (776259).

1451421 is a wasteful number, since it uses less digits than its factorization.

1451421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 182 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 1451421 is about 1204.7493515250. The cubic root of 1451421 is about 113.2220813305. Note that the first 3 decimals are identical.

Adding to 1451421 its reverse (1241541), we get a palindrome (2692962).

It can be divided in two parts, 14514 and 21, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 1451421 in words is "one million, four hundred fifty-one thousand, four hundred twenty-one".