142899552 has 288 divisors, whose sum is σ = 475517952. Its totient is φ = 41969664.

The previous prime is 142899487. The next prime is 142899563. The reversal of 142899552 is 255998241.

It is a happy number.

142899552 is a `hidden beast` number, since 1 + 4 + 2 + 8 + 99 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a junction number, because it is equal to n+sod(n) for n = 142899498 and 142899507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3040393 + ... + 3040439.

It is an arithmetic number, because the mean of its divisors is an integer number (1651104).

Almost surely, 2^142899552 is an apocalyptic number.

142899552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142899552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237758976).

142899552 is an abundant number, since it is smaller than the sum of its proper divisors (332618400).

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

142899552 is a wasteful number, since it uses less digits than its factorization.

142899552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 92 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 142899552 is about 11954.0600634261. The cubic root of 142899552 is about 522.8096827962.

The spelling of 142899552 in words is "one hundred forty-two million, eight hundred ninety-nine thousand, five hundred fifty-two".