142551904 has 24 divisors (see below), whose sum is σ = 306163368. Its totient is φ = 64796160.

The previous prime is 142551901. The next prime is 142551917. The reversal of 142551904 is 409155241.

142551904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142551901) 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, 202137 + ... + 202840.

It is an arithmetic number, because the mean of its divisors is an integer number (12756807).

Almost surely, 2^142551904 is an apocalyptic number.

It is an amenable number.

142551904 is an abundant number, since it is smaller than the sum of its proper divisors (163611464).

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

142551904 is a wasteful number, since it uses less digits than its factorization.

142551904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404998 (or 404990 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 142551904 is about 11939.5102077095. The cubic root of 142551904 is about 522.3853723194.

The spelling of 142551904 in words is "one hundred forty-two million, five hundred fifty-one thousand, nine hundred four".