1240141 has 6 divisors (see below), whose sum is σ = 1442670.
Its totient is φ = 1062936.
The previous prime is 1240139. The next prime is 1240153. The reversal of 1240141 is 1410421.
It can be written as a sum of positive squares in only one way, i.e., 1102500 + 137641 = 1050^2 + 371^2
It is not a de Polignac number, because 1240141 - 21 = 1240139 is a prime.
It is an Ulam number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1240181) 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 5 ways as a sum of consecutive naturals, for example, 12606 + ... + 12703.
It is an arithmetic number, because the mean of its divisors is an integer number (240445).
21240141 is an apocalyptic number.
It is an amenable number.
1240141 is a deficient number, since it is larger than the sum of its proper divisors (202529).
1240141 is an equidigital number, since it uses as much as digits as its factorization.
1240141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25323 (or 25316 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 13.
The square root of 1240141 is about 1113.6161816353.
The cubic root of 1240141 is about 107.4377790286.
Adding to 1240141 its reverse (1410421), we get a palindrome (2650562).
The spelling of 1240141 in words is "one million, two hundred forty thousand, one hundred forty-one".