1540301225 has 12 divisors (see below), whose sum is σ = 1917972480. Its totient is φ = 1227080400.

The previous prime is 1540301221. The next prime is 1540301233. The reversal of 1540301225 is 5221030451.

It is not a de Polignac number, because 1540301225 - 2² = 1540301221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1540301225.

It is not an unprimeable number, because it can be changed into a prime (1540301221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122921 + ... + 134870.

It is an arithmetic number, because the mean of its divisors is an integer number (159831040).

Almost surely, 2^1540301225 is an apocalyptic number.

It is an amenable number.

1540301225 is a deficient number, since it is larger than the sum of its proper divisors (377671255).

1540301225 is a wasteful number, since it uses less digits than its factorization.

1540301225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258040 (or 258035 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1540301225 is about 39246.6715149196. The cubic root of 1540301225 is about 1154.8756386157.

Adding to 1540301225 its reverse (5221030451), we get a palindrome (6761331676).

The spelling of 1540301225 in words is "one billion, five hundred forty million, three hundred one thousand, two hundred twenty-five".