1154542332 has 12 divisors (see below), whose sum is σ = 2693932136. Its totient is φ = 384847440.

The previous prime is 1154542321. The next prime is 1154542381. The reversal of 1154542332 is 2332454511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1154542332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48105919 + ... + 48105942.

Almost surely, 2^1154542332 is an apocalyptic number.

1154542332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1154542332 is an abundant number, since it is smaller than the sum of its proper divisors (1539389804).

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

1154542332 is a wasteful number, since it uses less digits than its factorization.

1154542332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96211868 (or 96211866 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 1154542332 is about 33978.5569440493. The cubic root of 1154542332 is about 1049.0671478883.

Adding to 1154542332 its reverse (2332454511), we get a palindrome (3486996843).

The spelling of 1154542332 in words is "one billion, one hundred fifty-four million, five hundred forty-two thousand, three hundred thirty-two".