1143530154 has 24 divisors (see below), whose sum is σ = 2668237572. Its totient is φ = 351855360.

The previous prime is 1143530149. The next prime is 1143530203. The reversal of 1143530154 is 4510353411.

It is a happy number.

1143530154 is a `hidden beast` number, since 114 + 3 + 530 + 15 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1068309225 + 75220929 = 32685^2 + 8673^2 .

It is a super-2 number, since 2×1143530154² = 2615322426214527432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2443207 + ... + 2443674.

Almost surely, 2^1143530154 is an apocalyptic number.

1143530154 is an abundant number, since it is smaller than the sum of its proper divisors (1524707418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143530154 is a wasteful number, since it uses less digits than its factorization.

1143530154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886902 (or 4886899 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1143530154 is about 33816.1226931770. The cubic root of 1143530154 is about 1045.7211063369.

Adding to 1143530154 its reverse (4510353411), we get a palindrome (5653883565).

The spelling of 1143530154 in words is "one billion, one hundred forty-three million, five hundred thirty thousand, one hundred fifty-four".