1142354520 has 48 divisors (see below), whose sum is σ = 3712653360. Its totient is φ = 304627776.

The previous prime is 1142354513. The next prime is 1142354561. The reversal of 1142354520 is 254532411.

1142354520 is a `hidden beast` number, since 114 + 2 + 3 + 545 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1586244 + ... + 1586963.

It is an arithmetic number, because the mean of its divisors is an integer number (77346945).

Almost surely, 2^1142354520 is an apocalyptic number.

1142354520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142354520 is an abundant number, since it is smaller than the sum of its proper divisors (2570298840).

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

1142354520 is a wasteful number, since it uses less digits than its factorization.

1142354520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173224 (or 3173217 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1142354520 is about 33798.7354793045. The cubic root of 1142354520 is about 1045.3626237837.

Adding to 1142354520 its reverse (254532411), we get a palindrome (1396886931).

The spelling of 1142354520 in words is "one billion, one hundred forty-two million, three hundred fifty-four thousand, five hundred twenty".