142451878 has 8 divisors (see below), whose sum is σ = 213772680. Its totient is φ = 71194320.

The previous prime is 142451861. The next prime is 142451879. The reversal of 142451878 is 878154241.

142451878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 142451878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142451879) 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, 9708 + ... + 19471.

It is an arithmetic number, because the mean of its divisors is an integer number (26721585).

Almost surely, 2^142451878 is an apocalyptic number.

142451878 is a deficient number, since it is larger than the sum of its proper divisors (71320802).

142451878 is a wasteful number, since it uses less digits than its factorization.

142451878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31622.

The product of its digits is 71680, while the sum is 40.

The square root of 142451878 is about 11935.3206073402. The cubic root of 142451878 is about 522.2631610546.

The spelling of 142451878 in words is "one hundred forty-two million, four hundred fifty-one thousand, eight hundred seventy-eight".