1420161 has 16 divisors (see below), whose sum is σ = 1974720. Its totient is φ = 907200.

The previous prime is 1420151. The next prime is 1420169. The reversal of 1420161 is 1610241.

It is not a de Polignac number, because 1420161 - 2¹⁰ = 1419137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1420161.

It is not an unprimeable number, because it can be changed into a prime (1420169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12975 + ... + 13083.

It is an arithmetic number, because the mean of its divisors is an integer number (123420).

2^1420161 is an apocalyptic number.

It is an amenable number.

1420161 is a deficient number, since it is larger than the sum of its proper divisors (554559).

1420161 is a wasteful number, since it uses less digits than its factorization.

1420161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1420161 is about 1191.7050809659. The cubic root of 1420161 is about 112.4033342476.

The spelling of 1420161 in words is "one million, four hundred twenty thousand, one hundred sixty-one".