1135781480 has 16 divisors (see below), whose sum is σ = 2555508420. Its totient is φ = 454312576.

The previous prime is 1135781473. The next prime is 1135781483. The reversal of 1135781480 is 841875311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1085966116 + 49815364 = 32954^2 + 7058^2 .

It is a super-3 number, since 3×1135781480³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1135781483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14197229 + ... + 14197308.

Almost surely, 2^1135781480 is an apocalyptic number.

1135781480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135781480 is an abundant number, since it is smaller than the sum of its proper divisors (1419726940).

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

1135781480 is a wasteful number, since it uses less digits than its factorization.

1135781480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28394548 (or 28394544 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 1135781480 is about 33701.3572426987. The cubic root of 1135781480 is about 1043.3537811242.

The spelling of 1135781480 in words is "one billion, one hundred thirty-five million, seven hundred eighty-one thousand, four hundred eighty".