1540118 has 4 divisors (see below), whose sum is σ = 2310180. Its totient is φ = 770058.

The previous prime is 1540109. The next prime is 1540141. The reversal of 1540118 is 8110451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8110451 = 1663 ⋅4877.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1540118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385028 + ... + 385031.

It is an arithmetic number, because the mean of its divisors is an integer number (577545).

2^1540118 is an apocalyptic number.

1540118 is a deficient number, since it is larger than the sum of its proper divisors (770062).

1540118 is an equidigital number, since it uses as much as digits as its factorization.

1540118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770061.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 1540118 is about 1241.0149072433. The cubic root of 1540118 is about 115.4829844439.

Adding to 1540118 its reverse (8110451), we get a palindrome (9650569).

The spelling of 1540118 in words is "one million, five hundred forty thousand, one hundred eighteen".