1136688431 has 4 divisors (see below), whose sum is σ = 1136881200. Its totient is φ = 1136495664.

The previous prime is 1136688401. The next prime is 1136688503. The reversal of 1136688431 is 1348866311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1136688431 is a prime.

It is a super-2 number, since 2×1136688431² = 2584121178338483522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136688401) 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, 87251 + ... + 99428.

It is an arithmetic number, because the mean of its divisors is an integer number (284220300).

Almost surely, 2^1136688431 is an apocalyptic number.

1136688431 is a deficient number, since it is larger than the sum of its proper divisors (192769).

1136688431 is an equidigital number, since it uses as much as digits as its factorization.

1136688431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192768.

The product of its digits is 82944, while the sum is 41.

The square root of 1136688431 is about 33714.8102619605. The cubic root of 1136688431 is about 1043.6314222637.

The spelling of 1136688431 in words is "one billion, one hundred thirty-six million, six hundred eighty-eight thousand, four hundred thirty-one".