1135432431 has 64 divisors (see below), whose sum is σ = 2090741760. Its totient is φ = 594086400.

The previous prime is 1135432427. The next prime is 1135432469. The reversal of 1135432431 is 1342345311.

It is a happy number.

1135432431 is a `hidden beast` number, since 113 + 543 + 2 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 1135432431 - 2² = 1135432427 is a prime.

It is a super-2 number, since 2×1135432431² = 2578413610733139522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1135432395 and 1135432404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135432231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114106 + ... + 123656.

It is an arithmetic number, because the mean of its divisors is an integer number (32667840).

Almost surely, 2^1135432431 is an apocalyptic number.

1135432431 is a deficient number, since it is larger than the sum of its proper divisors (955309329).

1135432431 is a wasteful number, since it uses less digits than its factorization.

1135432431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9621 (or 9615 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1135432431 is about 33696.1782847848. The cubic root of 1135432431 is about 1043.2468888175.

Adding to 1135432431 its reverse (1342345311), we get a palindrome (2477777742).

The spelling of 1135432431 in words is "one billion, one hundred thirty-five million, four hundred thirty-two thousand, four hundred thirty-one".