143102949 has 12 divisors (see below), whose sum is σ = 209727168. Its totient is φ = 86728840.

The previous prime is 143102933. The next prime is 143102963. The reversal of 143102949 is 949201341.

143102949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143102949 - 2⁴ = 143102933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143102929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196749 + ... + 197474.

It is an arithmetic number, because the mean of its divisors is an integer number (17477264).

Almost surely, 2^143102949 is an apocalyptic number.

It is an amenable number.

143102949 is a deficient number, since it is larger than the sum of its proper divisors (66624219).

143102949 is a wasteful number, since it uses less digits than its factorization.

143102949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394248 (or 394237 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 143102949 is about 11962.5644825848. The cubic root of 143102949 is about 523.0576133814.

The spelling of 143102949 in words is "one hundred forty-three million, one hundred two thousand, nine hundred forty-nine".