142251648 has 256 divisors, whose sum is σ = 500567040. Its totient is φ = 34652160.

The previous prime is 142251647. The next prime is 142251661. The reversal of 142251648 is 846152241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (142251647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 502515 + ... + 502797.

It is an arithmetic number, because the mean of its divisors is an integer number (1955340).

Almost surely, 2^142251648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142251648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250283520).

142251648 is an abundant number, since it is smaller than the sum of its proper divisors (358315392).

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

142251648 is a wasteful number, since it uses less digits than its factorization.

142251648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 323 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 142251648 is about 11926.9295294304. The cubic root of 142251648 is about 522.0183490563.

The spelling of 142251648 in words is "one hundred forty-two million, two hundred fifty-one thousand, six hundred forty-eight".