143857106 has 4 divisors (see below), whose sum is σ = 215785662. Its totient is φ = 71928552.

The previous prime is 143857079. The next prime is 143857121. The reversal of 143857106 is 601758341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601758341 = 4357 ⋅138113.

It can be written as a sum of positive squares in only one way, i.e., 92948881 + 50908225 = 9641^2 + 7135^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35964275 + ... + 35964278.

Almost surely, 2^143857106 is an apocalyptic number.

143857106 is a deficient number, since it is larger than the sum of its proper divisors (71928556).

143857106 is an equidigital number, since it uses as much as digits as its factorization.

143857106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71928555.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 143857106 is about 11994.0446055532. The cubic root of 143857106 is about 523.9748472863.

The spelling of 143857106 in words is "one hundred forty-three million, eight hundred fifty-seven thousand, one hundred six".