1540205002 has 8 divisors (see below), whose sum is σ = 2640351456. Its totient is φ = 660087852.

The previous prime is 1540204997. The next prime is 1540205053. The reversal of 1540205002 is 2005020451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55007308 + ... + 55007335.

It is an arithmetic number, because the mean of its divisors is an integer number (330043932).

Almost surely, 2^1540205002 is an apocalyptic number.

1540205002 is a deficient number, since it is larger than the sum of its proper divisors (1100146454).

1540205002 is a wasteful number, since it uses less digits than its factorization.

1540205002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110014652.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1540205002 is about 39245.4456211163. The cubic root of 1540205002 is about 1154.8515896590.

Adding to 1540205002 its reverse (2005020451), we get a palindrome (3545225453).

The spelling of 1540205002 in words is "one billion, five hundred forty million, two hundred five thousand, two".