1538161008 has 40 divisors (see below), whose sum is σ = 4004886528. Its totient is φ = 508681152.

The previous prime is 1538160983. The next prime is 1538161019. The reversal of 1538161008 is 8001618351.

It is a self number, because there is not a number n which added to its sum of digits gives 1538161008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120066 + ... + 132257.

Almost surely, 2^1538161008 is an apocalyptic number.

It is an amenable number.

1538161008 is an abundant number, since it is smaller than the sum of its proper divisors (2466725520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1538161008 is a wasteful number, since it uses less digits than its factorization.

1538161008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252461 (or 252455 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 1538161008 is about 39219.3958138062. The cubic root of 1538161008 is about 1154.3404986695.

Adding to 1538161008 its reverse (8001618351), we get a palindrome (9539779359).

The spelling of 1538161008 in words is "one billion, five hundred thirty-eight million, one hundred sixty-one thousand, eight".