1135253431 has 8 divisors (see below), whose sum is σ = 1222860464. Its totient is φ = 1047686400.

The previous prime is 1135253423. The next prime is 1135253447. The reversal of 1135253431 is 1343525311.

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 1135253431 - 2³ = 1135253423 is a prime.

It is a super-2 number, since 2×1135253431² = 2577600705194543522, 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 1135253431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135253411) 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, 77095 + ... + 90631.

It is an arithmetic number, because the mean of its divisors is an integer number (152857558).

Almost surely, 2^1135253431 is an apocalyptic number.

1135253431 is a deficient number, since it is larger than the sum of its proper divisors (87607033).

1135253431 is a wasteful number, since it uses less digits than its factorization.

1135253431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20001.

The product of its digits is 5400, while the sum is 28.

The square root of 1135253431 is about 33693.5220925329. The cubic root of 1135253431 is about 1043.1920635949.

Adding to 1135253431 its reverse (1343525311), we get a palindrome (2478778742).

The spelling of 1135253431 in words is "one billion, one hundred thirty-five million, two hundred fifty-three thousand, four hundred thirty-one".