1420501 has 2 divisors, whose sum is σ = 1420502. Its totient is φ = 1420500.

The previous prime is 1420493. The next prime is 1420511. The reversal of 1420501 is 1050241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 998001 + 422500 = 999^2 + 650^2 .

It is an emirp because it is prime and its reverse (1050241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420501 - 2³ = 1420493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710250 + 710251.

It is an arithmetic number, because the mean of its divisors is an integer number (710251).

2^1420501 is an apocalyptic number.

It is an amenable number.

1420501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420501 is an equidigital number, since it uses as much as digits as its factorization.

1420501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1420501 is about 1191.8477251730. The cubic root of 1420501 is about 112.4123036729.

Adding to 1420501 its reverse (1050241), we get a palindrome (2470742).

The spelling of 1420501 in words is "one million, four hundred twenty thousand, five hundred one".