1133531451 has 24 divisors (see below), whose sum is σ = 1771012880. Its totient is φ = 694495296.

The previous prime is 1133531449. The next prime is 1133531459. The reversal of 1133531451 is 1541353311.

It is a happy number.

1133531451 is a `hidden beast` number, since 11 + 335 + 314 + 5 + 1 = 666.

It is not a de Polignac number, because 1133531451 - 2¹ = 1133531449 is a prime.

It is a super-4 number, since 4×1133531451⁴ (a number of 37 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1133531459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5640 + ... + 47946.

Almost surely, 2^1133531451 is an apocalyptic number.

1133531451 is a deficient number, since it is larger than the sum of its proper divisors (637481429).

1133531451 is a wasteful number, since it uses less digits than its factorization.

1133531451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42555 (or 42552 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 1133531451 is about 33667.9588184374. The cubic root of 1133531451 is about 1042.6643503288.

Adding to 1133531451 its reverse (1541353311), we get a palindrome (2674884762).

The spelling of 1133531451 in words is "one billion, one hundred thirty-three million, five hundred thirty-one thousand, four hundred fifty-one".