1540155338 has 16 divisors (see below), whose sum is σ = 2368064160. Its totient is φ = 750862896.

The previous prime is 1540155319. The next prime is 1540155401. The reversal of 1540155338 is 8335510451.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1540155298 and 1540155307.

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 in 7 ways as a sum of consecutive naturals, for example, 35228 + ... + 65736.

It is an arithmetic number, because the mean of its divisors is an integer number (148004010).

Almost surely, 2^1540155338 is an apocalyptic number.

1540155338 is a deficient number, since it is larger than the sum of its proper divisors (827908822).

1540155338 is a wasteful number, since it uses less digits than its factorization.

1540155338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31141.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 1540155338 is about 39244.8128801756. The cubic root of 1540155338 is about 1154.8391767733.

Adding to 1540155338 its reverse (8335510451), we get a palindrome (9875665789).

The spelling of 1540155338 in words is "one billion, five hundred forty million, one hundred fifty-five thousand, three hundred thirty-eight".