1426161 has 16 divisors (see below), whose sum is σ = 2165760. Its totient is φ = 826320.

The previous prime is 1426157. The next prime is 1426163. The reversal of 1426161 is 1616241.

It is not a de Polignac number, because 1426161 - 2² = 1426157 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426163) 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 15 ways as a sum of consecutive naturals, for example, 181 + ... + 1698.

It is an arithmetic number, because the mean of its divisors is an integer number (135360).

2^1426161 is an apocalyptic number.

1426161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1426161 is a deficient number, since it is larger than the sum of its proper divisors (739599).

1426161 is a wasteful number, since it uses less digits than its factorization.

1426161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916.

The product of its digits is 288, while the sum is 21.

The square root of 1426161 is about 1194.2198290097. The cubic root of 1426161 is about 112.5614084492.

The spelling of 1426161 in words is "one million, four hundred twenty-six thousand, one hundred sixty-one".