1642141 has 2 divisors, whose sum is σ = 1642142. Its totient is φ = 1642140.

The previous prime is 1642117. The next prime is 1642153. The reversal of 1642141 is 1412461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1612900 + 29241 = 1270^2 + 171^2 .

It is an emirp because it is prime and its reverse (1412461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1642141 - 2¹³ = 1633949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1642441) 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 as a sum of consecutive naturals, namely, 821070 + 821071.

It is an arithmetic number, because the mean of its divisors is an integer number (821071).

2^1642141 is an apocalyptic number.

It is an amenable number.

1642141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1642141 is an equidigital number, since it uses as much as digits as its factorization.

1642141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 1642141 is about 1281.4604949042. The cubic root of 1642141 is about 117.9786660656.

The spelling of 1642141 in words is "one million, six hundred forty-two thousand, one hundred forty-one".