143949377 has 16 divisors (see below), whose sum is σ = 178019520. Its totient is φ = 114436800.

The previous prime is 143949371. The next prime is 143949389. The reversal of 143949377 is 773949341.

It is a cyclic number.

It is not a de Polignac number, because 143949377 - 2⁴ = 143949361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143949371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23774 + ... + 29207.

It is an arithmetic number, because the mean of its divisors is an integer number (11126220).

Almost surely, 2^143949377 is an apocalyptic number.

It is an amenable number.

143949377 is a deficient number, since it is larger than the sum of its proper divisors (34070143).

143949377 is a wasteful number, since it uses less digits than its factorization.

143949377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53024.

The product of its digits is 571536, while the sum is 47.

The square root of 143949377 is about 11997.8905229211. The cubic root of 143949377 is about 524.0868504430.

The spelling of 143949377 in words is "one hundred forty-three million, nine hundred forty-nine thousand, three hundred seventy-seven".