142551031540 has 12 divisors (see below), whose sum is σ = 299357166276. Its totient is φ = 57020412608.

The previous prime is 142551031433. The next prime is 142551031547. The reversal of 142551031540 is 45130155241.

It can be written as a sum of positive squares in 2 ways, for example, as 101874595684 + 40676435856 = 319178^2 + 201684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142551031547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3563775769 + ... + 3563775808.

It is an arithmetic number, because the mean of its divisors is an integer number (24946430523).

Almost surely, 2^142551031540 is an apocalyptic number.

142551031540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142551031540 is an abundant number, since it is smaller than the sum of its proper divisors (156806134736).

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

142551031540 is a wasteful number, since it uses less digits than its factorization.

142551031540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7127551586 (or 7127551584 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 142551031540 its reverse (45130155241), we get a palindrome (187681186781).

The spelling of 142551031540 in words is "one hundred forty-two billion, five hundred fifty-one million, thirty-one thousand, five hundred forty".