1423251 has 12 divisors (see below), whose sum is σ = 2132312. Its totient is φ = 948672.

The previous prime is 1423243. The next prime is 1423259. The reversal of 1423251 is 1523241.

It is an interprime number because it is at equal distance from previous prime (1423243) and next prime (1423259).

It is not a de Polignac number, because 1423251 - 2³ = 1423243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2686 + ... + 3171.

2^1423251 is an apocalyptic number.

1423251 is a deficient number, since it is larger than the sum of its proper divisors (709061).

1423251 is an frugal number, since it uses more digits than its factorization.

1423251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872 (or 5860 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1423251 is about 1193.0008382227. Note that the first 3 decimals coincide. The cubic root of 1423251 is about 112.4847979458.

Adding to 1423251 its reverse (1523241), we get a palindrome (2946492).

The spelling of 1423251 in words is "one million, four hundred twenty-three thousand, two hundred fifty-one".