142988500 has 24 divisors (see below), whose sum is σ = 312287976. Its totient is φ = 57195200.

The previous prime is 142988497. The next prime is 142988501. The reversal of 142988500 is 5889241.

It can be written as a sum of positive squares in 4 ways, for example, as 2471184 + 140517316 = 1572^2 + 11854^2 .

It is a super-2 number, since 2×142988500² = 40891422264500000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142988500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142988501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142489 + ... + 143488.

It is an arithmetic number, because the mean of its divisors is an integer number (13011999).

Almost surely, 2^142988500 is an apocalyptic number.

142988500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142988500 is an abundant number, since it is smaller than the sum of its proper divisors (169299476).

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

142988500 is a wasteful number, since it uses less digits than its factorization.

142988500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285996 (or 285984 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 142988500 is about 11957.7798942780. The cubic root of 142988500 is about 522.9181348050.

The spelling of 142988500 in words is "one hundred forty-two million, nine hundred eighty-eight thousand, five hundred".