143948031 has 4 divisors (see below), whose sum is σ = 191930712. Its totient is φ = 95965352.

The previous prime is 143948029. The next prime is 143948039. The reversal of 143948031 is 130849341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143948031 - 2¹ = 143948029 is a prime.

It is a super-2 number, since 2×143948031² = 41442071257553922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143947983 and 143948001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143948039) 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, 23991336 + ... + 23991341.

It is an arithmetic number, because the mean of its divisors is an integer number (47982678).

Almost surely, 2^143948031 is an apocalyptic number.

143948031 is a deficient number, since it is larger than the sum of its proper divisors (47982681).

143948031 is an equidigital number, since it uses as much as digits as its factorization.

143948031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47982680.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 143948031 is about 11997.8344295960. The cubic root of 143948031 is about 524.0852169450.

The spelling of 143948031 in words is "one hundred forty-three million, nine hundred forty-eight thousand, thirty-one".