1151251533 has 6 divisors (see below), whose sum is σ = 1662918894. Its totient is φ = 767501016.

The previous prime is 1151251489. The next prime is 1151251561. The reversal of 1151251533 is 3351521511.

1151251533 is a `hidden beast` number, since 1 + 1 + 5 + 125 + 1 + 533 = 666.

It can be written as a sum of positive squares in only one way, i.e., 852756804 + 298494729 = 29202^2 + 17277^2 .

It is not a de Polignac number, because 1151251533 - 2²⁴ = 1134474317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1151251497 and 1151251506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151251333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63958410 + ... + 63958427.

It is an arithmetic number, because the mean of its divisors is an integer number (277153149).

Almost surely, 2^1151251533 is an apocalyptic number.

It is an amenable number.

1151251533 is a deficient number, since it is larger than the sum of its proper divisors (511667361).

1151251533 is a wasteful number, since it uses less digits than its factorization.

1151251533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127916843 (or 127916840 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 1151251533 is about 33930.0977452173. The cubic root of 1151251533 is about 1048.0694785848.

The spelling of 1151251533 in words is "one billion, one hundred fifty-one million, two hundred fifty-one thousand, five hundred thirty-three".