7542231140 has 24 divisors (see below), whose sum is σ = 15840658680. Its totient is φ = 3016516608.

The previous prime is 7542231131. The next prime is 7542231143. The reversal of 7542231140 is 411322457.

It can be written as a sum of positive squares in 4 ways, for example, as 166513216 + 7375717924 = 12904^2 + 85882^2 .

It is not an unprimeable number, because it can be changed into a prime (7542231143) 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 7 ways as a sum of consecutive naturals, for example, 187106 + ... + 223814.

It is an arithmetic number, because the mean of its divisors is an integer number (660027445).

Almost surely, 2^7542231140 is an apocalyptic number.

It is an amenable number.

7542231140 is an abundant number, since it is smaller than the sum of its proper divisors (8298427540).

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

7542231140 is a wasteful number, since it uses less digits than its factorization.

7542231140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46991 (or 46989 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 7542231140 is about 86846.0197130531. The cubic root of 7542231140 is about 1961.1009311931.

Adding to 7542231140 its reverse (411322457), we get a palindrome (7953553597).

The spelling of 7542231140 in words is "seven billion, five hundred forty-two million, two hundred thirty-one thousand, one hundred forty".