143948957 has 4 divisors (see below), whose sum is σ = 145047936. Its totient is φ = 142849980.

The previous prime is 143948947. The next prime is 143948969. The reversal of 143948957 is 759849341.

143948957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143948957 - 2⁴ = 143948941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143948947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549293 + ... + 549554.

It is an arithmetic number, because the mean of its divisors is an integer number (36261984).

Almost surely, 2^143948957 is an apocalyptic number.

It is an amenable number.

143948957 is a deficient number, since it is larger than the sum of its proper divisors (1098979).

143948957 is a wasteful number, since it uses less digits than its factorization.

143948957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098978.

The product of its digits is 1088640, while the sum is 50.

The square root of 143948957 is about 11997.8730198315. The cubic root of 143948957 is about 524.0863407345.

The spelling of 143948957 in words is "one hundred forty-three million, nine hundred forty-eight thousand, nine hundred fifty-seven".