142487140 has 12 divisors (see below), whose sum is σ = 299223036. Its totient is φ = 56994848.

The previous prime is 142487113. The next prime is 142487141. The reversal of 142487140 is 41784241.

It is a happy number.

142487140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52881984 + 89605156 = 7272^2 + 9466^2 .

It is not an unprimeable number, because it can be changed into a prime (142487141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3562159 + ... + 3562198.

It is an arithmetic number, because the mean of its divisors is an integer number (24935253).

Almost surely, 2^142487140 is an apocalyptic number.

142487140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142487140 is an abundant number, since it is smaller than the sum of its proper divisors (156735896).

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

142487140 is a wasteful number, since it uses less digits than its factorization.

142487140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124366 (or 7124364 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 142487140 is about 11936.7977280341. The cubic root of 142487140 is about 522.3062505164.

The spelling of 142487140 in words is "one hundred forty-two million, four hundred eighty-seven thousand, one hundred forty".