1008536381 has 8 divisors (see below), whose sum is σ = 1020703200. Its totient is φ = 996437520.

The previous prime is 1008536377. The next prime is 1008536401. The reversal of 1008536381 is 1836358001.

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

It is a cyclic number.

It is not a de Polignac number, because 1008536381 - 2² = 1008536377 is a prime.

It is a super-3 number, since 3×1008536381³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1008536371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13190 + ... + 46808.

It is an arithmetic number, because the mean of its divisors is an integer number (127587900).

Almost surely, 2^1008536381 is an apocalyptic number.

It is an amenable number.

1008536381 is a deficient number, since it is larger than the sum of its proper divisors (12166819).

1008536381 is a wasteful number, since it uses less digits than its factorization.

1008536381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33979.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1008536381 is about 31757.4618160835. The cubic root of 1008536381 is about 1002.8374018695.

The spelling of 1008536381 in words is "one billion, eight million, five hundred thirty-six thousand, three hundred eighty-one".