1420523 has 8 divisors (see below), whose sum is σ = 1544928. Its totient is φ = 1298304.

The previous prime is 1420519. The next prime is 1420561. The reversal of 1420523 is 3250241.

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

It is a cyclic number.

It is not a de Polignac number, because 1420523 - 2² = 1420519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420583) 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 7 ways as a sum of consecutive naturals, for example, 986 + ... + 1952.

It is an arithmetic number, because the mean of its divisors is an integer number (193116).

2^1420523 is an apocalyptic number.

1420523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1420523 is a deficient number, since it is larger than the sum of its proper divisors (124405).

1420523 is a wasteful number, since it uses less digits than its factorization.

1420523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1420523 is about 1191.8569545042. The cubic root of 1420523 is about 112.4128839982.

Adding to 1420523 its reverse (3250241), we get a palindrome (4670764).

The spelling of 1420523 in words is "one million, four hundred twenty thousand, five hundred twenty-three".