142151808 has 64 divisors (see below), whose sum is σ = 386416800. Its totient is φ = 46276608.

The previous prime is 142151803. The next prime is 142151813. The reversal of 142151808 is 808151241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142151803) and next prime (142151813).

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (142151803) 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, 12208 + ... + 20816.

Almost surely, 2^142151808 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 142151808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193208400).

142151808 is an abundant number, since it is smaller than the sum of its proper divisors (244264992).

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

142151808 is an equidigital number, since it uses as much as digits as its factorization.

142151808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8669 (or 8657 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 142151808 is about 11922.7433084840. The cubic root of 142151808 is about 521.8961934477.

The spelling of 142151808 in words is "one hundred forty-two million, one hundred fifty-one thousand, eight hundred eight".