142451688 has 16 divisors (see below), whose sum is σ = 356129280. Its totient is φ = 47483888.

The previous prime is 142451681. The next prime is 142451693. The reversal of 142451688 is 886154241.

142451688 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142451681) 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, 2967720 + ... + 2967767.

It is an arithmetic number, because the mean of its divisors is an integer number (22258080).

Almost surely, 2^142451688 is an apocalyptic number.

It is an amenable number.

142451688 is an abundant number, since it is smaller than the sum of its proper divisors (213677592).

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

142451688 is a wasteful number, since it uses less digits than its factorization.

142451688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5935496 (or 5935492 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 142451688 is about 11935.3126477692. The cubic root of 142451688 is about 522.2629288591.

The spelling of 142451688 in words is "one hundred forty-two million, four hundred fifty-one thousand, six hundred eighty-eight".