1540612 has 6 divisors (see below), whose sum is σ = 2696078. Its totient is φ = 770304.

The previous prime is 1540603. The next prime is 1540619. The reversal of 1540612 is 2160451.

It can be written as a sum of positive squares in only one way, i.e., 1498176 + 42436 = 1224^2 + 206^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1540612.

It is not an unprimeable number, because it can be changed into a prime (1540619) 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, 192573 + ... + 192580.

2^1540612 is an apocalyptic number.

It is an amenable number.

1540612 is a deficient number, since it is larger than the sum of its proper divisors (1155466).

1540612 is a wasteful number, since it uses less digits than its factorization.

1540612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385157 (or 385155 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1540612 is about 1241.2139219329. The cubic root of 1540612 is about 115.4953303585.

The spelling of 1540612 in words is "one million, five hundred forty thousand, six hundred twelve".