1540125502 has 4 divisors (see below), whose sum is σ = 2310188256. Its totient is φ = 770062750.

The previous prime is 1540125497. The next prime is 1540125511. The reversal of 1540125502 is 2055210451.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 385031374 + ... + 385031377.

It is an arithmetic number, because the mean of its divisors is an integer number (577547064).

Almost surely, 2^1540125502 is an apocalyptic number.

1540125502 is a deficient number, since it is larger than the sum of its proper divisors (770062754).

1540125502 is an equidigital number, since it uses as much as digits as its factorization.

1540125502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770062753.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1540125502 is about 39244.4327516656. The cubic root of 1540125502 is about 1154.8317195159.

Adding to 1540125502 its reverse (2055210451), we get a palindrome (3595335953).

The spelling of 1540125502 in words is "one billion, five hundred forty million, one hundred twenty-five thousand, five hundred two".