1540230125 has 32 divisors (see below), whose sum is σ = 2205874944. Its totient is φ = 1051800000.

The previous prime is 1540230113. The next prime is 1540230127. The reversal of 1540230125 is 5210320451.

It is not a de Polignac number, because 1540230125 - 2⁶ = 1540230061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1540230125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540230127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216119 + ... + 223131.

It is an arithmetic number, because the mean of its divisors is an integer number (68933592).

Almost surely, 2^1540230125 is an apocalyptic number.

It is an amenable number.

1540230125 is a deficient number, since it is larger than the sum of its proper divisors (665644819).

1540230125 is an equidigital number, since it uses as much as digits as its factorization.

1540230125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7286 (or 7276 counting only the distinct ones).

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

The square root of 1540230125 is about 39245.7656951677. The cubic root of 1540230125 is about 1154.8578687319.

Adding to 1540230125 its reverse (5210320451), we get a palindrome (6750550576).

The spelling of 1540230125 in words is "one billion, five hundred forty million, two hundred thirty thousand, one hundred twenty-five".