1135735381 has 8 divisors (see below), whose sum is σ = 1281708000. Its totient is φ = 996883440.

The previous prime is 1135735379. The next prime is 1135735399. The reversal of 1135735381 is 1835375311.

It is a happy number.

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 1135735381 - 2¹ = 1135735379 is a prime.

It is a super-2 number, since 2×1135735381² = 2579789711310430322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1135735381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135735481) 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, 1779831 + ... + 1780468.

It is an arithmetic number, because the mean of its divisors is an integer number (160213500).

Almost surely, 2^1135735381 is an apocalyptic number.

1135735381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1135735381 is a deficient number, since it is larger than the sum of its proper divisors (145972619).

1135735381 is a wasteful number, since it uses less digits than its factorization.

1135735381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560339.

The product of its digits is 37800, while the sum is 37.

The square root of 1135735381 is about 33700.6733018793. The cubic root of 1135735381 is about 1043.3396650824.

The spelling of 1135735381 in words is "one billion, one hundred thirty-five million, seven hundred thirty-five thousand, three hundred eighty-one".