1423519 has 4 divisors (see below), whose sum is σ = 1432744. Its totient is φ = 1414296.

The previous prime is 1423511. The next prime is 1423547. The reversal of 1423519 is 9153241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1423519 - 2³ = 1423511 is a prime.

It is a super-2 number, since 2×1423519² = 4052812686722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423493 and 1423502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423511) 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 3 ways as a sum of consecutive naturals, for example, 4377 + ... + 4690.

It is an arithmetic number, because the mean of its divisors is an integer number (358186).

2^1423519 is an apocalyptic number.

1423519 is a deficient number, since it is larger than the sum of its proper divisors (9225).

1423519 is an equidigital number, since it uses as much as digits as its factorization.

1423519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224.

The product of its digits is 1080, while the sum is 25.

The square root of 1423519 is about 1193.1131547343. The cubic root of 1423519 is about 112.4918578469.

It can be divided in two parts, 14 and 23519, that multiplied together give a triangular number (329266 = T₈₁₁).

The spelling of 1423519 in words is "one million, four hundred twenty-three thousand, five hundred nineteen".