143948475 has 48 divisors (see below), whose sum is σ = 288493440. Its totient is φ = 69789600.

The previous prime is 143948473. The next prime is 143948501. The reversal of 143948475 is 574849341.

It is not a de Polignac number, because 143948475 - 2¹ = 143948473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 143948475.

It is not an unprimeable number, because it can be changed into a prime (143948473) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2269 + ... + 17118.

It is an arithmetic number, because the mean of its divisors is an integer number (6010280).

Almost surely, 2^143948475 is an apocalyptic number.

143948475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

143948475 is an abundant number, since it is smaller than the sum of its proper divisors (144544965).

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

143948475 is a wasteful number, since it uses less digits than its factorization.

143948475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19417 (or 19406 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 143948475 is about 11997.8529329210. The cubic root of 143948475 is about 524.0857557820.

The spelling of 143948475 in words is "one hundred forty-three million, nine hundred forty-eight thousand, four hundred seventy-five".