143172542 has 8 divisors (see below), whose sum is σ = 219753336. Its totient is φ = 69921432.

The previous prime is 143172541. The next prime is 143172553. The reversal of 143172542 is 245271341.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143172541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832313 + ... + 832484.

It is an arithmetic number, because the mean of its divisors is an integer number (27469167).

Almost surely, 2^143172542 is an apocalyptic number.

143172542 is a deficient number, since it is larger than the sum of its proper divisors (76580794).

143172542 is a wasteful number, since it uses less digits than its factorization.

143172542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664842.

The product of its digits is 6720, while the sum is 29.

The square root of 143172542 is about 11965.4729116738. The cubic root of 143172542 is about 523.1423897599.

The spelling of 143172542 in words is "one hundred forty-three million, one hundred seventy-two thousand, five hundred forty-two".