1140051636 has 36 divisors (see below), whose sum is σ = 2889240900. Its totient is φ = 379035648.

The previous prime is 1140051589. The next prime is 1140051643. The reversal of 1140051636 is 6361500411.

1140051636 is a `hidden beast` number, since 1 + 140 + 0 + 516 + 3 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 335988900 + 804062736 = 18330^2 + 28356^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26701 + ... + 54708.

Almost surely, 2^1140051636 is an apocalyptic number.

It is an amenable number.

1140051636 is an abundant number, since it is smaller than the sum of its proper divisors (1749189264).

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

1140051636 is a wasteful number, since it uses less digits than its factorization.

1140051636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81808 (or 81803 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1140051636 is about 33764.6506867760. The cubic root of 1140051636 is about 1044.6596988748.

It can be divided in two parts, 11400 and 51636, that added together give a palindrome (63036).

The spelling of 1140051636 in words is "one billion, one hundred forty million, fifty-one thousand, six hundred thirty-six".