143979910 has 32 divisors (see below), whose sum is σ = 279164160. Its totient is φ = 53288928.

The previous prime is 143979893. The next prime is 143979911. The reversal of 143979910 is 19979341.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143979911) 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 15 ways as a sum of consecutive naturals, for example, 642 + ... + 16981.

It is an arithmetic number, because the mean of its divisors is an integer number (8723880).

Almost surely, 2^143979910 is an apocalyptic number.

143979910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143979910 is a deficient number, since it is larger than the sum of its proper divisors (135184250).

143979910 is a wasteful number, since it uses less digits than its factorization.

143979910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17692.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 143979910 is about 11999.1628874684. The cubic root of 143979910 is about 524.1239023865.

The spelling of 143979910 in words is "one hundred forty-three million, nine hundred seventy-nine thousand, nine hundred ten".