1540102 has 8 divisors (see below), whose sum is σ = 2431800. Its totient is φ = 729504.

The previous prime is 1540087. The next prime is 1540109. The reversal of 1540102 is 2010451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540109) 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 in 3 ways as a sum of consecutive naturals, for example, 20227 + ... + 20302.

It is an arithmetic number, because the mean of its divisors is an integer number (303975).

2^1540102 is an apocalyptic number.

1540102 is a deficient number, since it is larger than the sum of its proper divisors (891698).

1540102 is a wasteful number, since it uses less digits than its factorization.

1540102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40550.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1540102 is about 1241.0084608898. The cubic root of 1540102 is about 115.4825845321.

Adding to 1540102 its reverse (2010451), we get a palindrome (3550553).

It can be divided in two parts, 1540 and 102, that multiplied together give a triangular number (157080 = T₅₆₀).

The spelling of 1540102 in words is "one million, five hundred forty thousand, one hundred two".