143995904 has 88 divisors (see below), whose sum is σ = 321542760. Its totient is φ = 63995904.

The previous prime is 143995883. The next prime is 143995913. The reversal of 143995904 is 409599341.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7573504 + 136422400 = 2752^2 + 11680^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385862 + ... + 386234.

It is an arithmetic number, because the mean of its divisors is an integer number (3653895).

Almost surely, 2^143995904 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 143995904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160771380).

143995904 is an abundant number, since it is smaller than the sum of its proper divisors (177546856).

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

143995904 is a wasteful number, since it uses less digits than its factorization.

143995904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 143995904 is about 11999.8293321197. The cubic root of 143995904 is about 524.1433090925.

The spelling of 143995904 in words is "one hundred forty-three million, nine hundred ninety-five thousand, nine hundred four".