1540041 has 4 divisors (see below), whose sum is σ = 2053392. Its totient is φ = 1026692.

The previous prime is 1540039. The next prime is 1540073. The reversal of 1540041 is 1400451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1540041 - 2¹ = 1540039 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1540041.

It is not an unprimeable number, because it can be changed into a prime (1540031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256671 + ... + 256676.

It is an arithmetic number, because the mean of its divisors is an integer number (513348).

2^1540041 is an apocalyptic number.

It is an amenable number.

1540041 is a deficient number, since it is larger than the sum of its proper divisors (513351).

1540041 is an equidigital number, since it uses as much as digits as its factorization.

1540041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513350.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1540041 is about 1240.9838838599. The cubic root of 1540041 is about 115.4810598429.

Adding to 1540041 its reverse (1400451), we get a palindrome (2940492).

The spelling of 1540041 in words is "one million, five hundred forty thousand, forty-one".