1420101 has 12 divisors (see below), whose sum is σ = 2122380. Its totient is φ = 913920.

The previous prime is 1420099. The next prime is 1420109. The reversal of 1420101 is 1010241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 893025 + 527076 = 945^2 + 726^2 .

It is not a de Polignac number, because 1420101 - 2¹ = 1420099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2460 + ... + 2981.

It is an arithmetic number, because the mean of its divisors is an integer number (176865).

2^1420101 is an apocalyptic number.

It is an amenable number.

1420101 is a deficient number, since it is larger than the sum of its proper divisors (702279).

1420101 is a wasteful number, since it uses less digits than its factorization.

1420101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476 (or 5473 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1420101 is about 1191.6799066864. The cubic root of 1420101 is about 112.4017512592.

Adding to 1420101 its reverse (1010241), we get a palindrome (2430342).

It can be divided in two parts, 1420 and 101, that added together give a square (1521 = 39²).

The spelling of 1420101 in words is "one million, four hundred twenty thousand, one hundred one".