143240949 has 24 divisors (see below), whose sum is σ = 213194592. Its totient is φ = 92607840.

The previous prime is 143240939. The next prime is 143240953. The reversal of 143240949 is 949042341.

It is not a de Polignac number, because 143240949 - 2⁵ = 143240917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143240939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147034 + ... + 148004.

It is an arithmetic number, because the mean of its divisors is an integer number (8883108).

Almost surely, 2^143240949 is an apocalyptic number.

It is an amenable number.

143240949 is a deficient number, since it is larger than the sum of its proper divisors (69953643).

143240949 is a wasteful number, since it uses less digits than its factorization.

143240949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 143240949 is about 11968.3310866637. The cubic root of 143240949 is about 523.2256946146.

The spelling of 143240949 in words is "one hundred forty-three million, two hundred forty thousand, nine hundred forty-nine".