1540144 has 10 divisors (see below), whose sum is σ = 2984060. Its totient is φ = 770064.

The previous prime is 1540141. The next prime is 1540151. The reversal of 1540144 is 4410451.

It is not an unprimeable number, because it can be changed into a prime (1540141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48114 + ... + 48145.

It is an arithmetic number, because the mean of its divisors is an integer number (298406).

2^1540144 is an apocalyptic number.

It is an amenable number.

1540144 is a deficient number, since it is larger than the sum of its proper divisors (1443916).

1540144 is an equidigital number, since it uses as much as digits as its factorization.

1540144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96267 (or 96261 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1540144 is about 1241.0253824963. The cubic root of 1540144 is about 115.4836342947.

Adding to 1540144 its reverse (4410451), we get a palindrome (5950595).

The spelling of 1540144 in words is "one million, five hundred forty thousand, one hundred forty-four".