143401478 has 16 divisors (see below), whose sum is σ = 235422720. Its totient is φ = 64969800.

The previous prime is 143401471. The next prime is 143401487. The reversal of 143401478 is 874104341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143401471) 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, 3638 + ... + 17321.

It is an arithmetic number, because the mean of its divisors is an integer number (14713920).

Almost surely, 2^143401478 is an apocalyptic number.

143401478 is a deficient number, since it is larger than the sum of its proper divisors (92021242).

143401478 is a wasteful number, since it uses less digits than its factorization.

143401478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21283.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 143401478 is about 11975.0356158134. The cubic root of 143401478 is about 523.4210799447.

The spelling of 143401478 in words is "one hundred forty-three million, four hundred one thousand, four hundred seventy-eight".