1423451 has 2 divisors, whose sum is σ = 1423452. Its totient is φ = 1423450.

The previous prime is 1423441. The next prime is 1423453. The reversal of 1423451 is 1543241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423451 is a prime.

Together with 1423453, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₁₀₈₇₃₁ and since 1423451 and 108731 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1423453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711725 + 711726.

It is an arithmetic number, because the mean of its divisors is an integer number (711726).

2^1423451 is an apocalyptic number.

1423451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423451 is an equidigital number, since it uses as much as digits as its factorization.

1423451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 20.

The square root of 1423451 is about 1193.0846575160. The cubic root of 1423451 is about 112.4900666127.

Adding to 1423451 its reverse (1543241), we get a palindrome (2966692).

The spelling of 1423451 in words is "one million, four hundred twenty-three thousand, four hundred fifty-one".