1540525414 has 32 divisors (see below), whose sum is σ = 2599555680. Its totient is φ = 681020928.

The previous prime is 1540525403. The next prime is 1540525417. The reversal of 1540525414 is 4145250451.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540525417) 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 15 ways as a sum of consecutive naturals, for example, 15369 + ... + 57595.

It is an arithmetic number, because the mean of its divisors is an integer number (81236115).

Almost surely, 2^1540525414 is an apocalyptic number.

1540525414 is a deficient number, since it is larger than the sum of its proper divisors (1059030266).

1540525414 is a wasteful number, since it uses less digits than its factorization.

1540525414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42312.

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 1540525414 is about 39249.5275640357. The cubic root of 1540525414 is about 1154.9316661533.

Adding to 1540525414 its reverse (4145250451), we get a palindrome (5685775865).

The spelling of 1540525414 in words is "one billion, five hundred forty million, five hundred twenty-five thousand, four hundred fourteen".