143551131 has 12 divisors (see below), whose sum is σ = 198232632. Its totient is φ = 92399104.

The previous prime is 143551103. The next prime is 143551141. The reversal of 143551131 is 131155341.

143551131 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 143551131 - 2⁹ = 143550619 is a prime.

It is a super-2 number, since 2×143551131² = 41213854422758322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143551141) 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, 25926 + ... + 30971.

It is an arithmetic number, because the mean of its divisors is an integer number (16519386).

Almost surely, 2^143551131 is an apocalyptic number.

143551131 is a deficient number, since it is larger than the sum of its proper divisors (54681501).

143551131 is an equidigital number, since it uses as much as digits as its factorization.

143551131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56958 (or 56929 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 143551131 is about 11981.2825273424. The cubic root of 143551131 is about 523.6030964366.

The spelling of 143551131 in words is "one hundred forty-three million, five hundred fifty-one thousand, one hundred thirty-one".