1540164 has 12 divisors (see below), whose sum is σ = 3593744. Its totient is φ = 513384.

The previous prime is 1540157. The next prime is 1540169. The reversal of 1540164 is 4610451.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1540164.

It is not an unprimeable number, because it can be changed into a prime (1540169) 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, 64162 + ... + 64185.

2^1540164 is an apocalyptic number.

It is an amenable number.

1540164 is an abundant number, since it is smaller than the sum of its proper divisors (2053580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1540164 is a wasteful number, since it uses less digits than its factorization.

1540164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128354 (or 128352 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1540164 is about 1241.0334403230. The cubic root of 1540164 is about 115.4841341749.

The spelling of 1540164 in words is "one million, five hundred forty thousand, one hundred sixty-four".