143256061 has 12 divisors (see below), whose sum is σ = 157321440. Its totient is φ = 130362960.

The previous prime is 143256023. The next prime is 143256073. The reversal of 143256061 is 160652341.

It is not a de Polignac number, because 143256061 - 2¹⁵ = 143223293 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 (143250061) 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, 6030 + ... + 17968.

It is an arithmetic number, because the mean of its divisors is an integer number (13110120).

Almost surely, 2^143256061 is an apocalyptic number.

It is an amenable number.

143256061 is a deficient number, since it is larger than the sum of its proper divisors (14065379).

143256061 is a wasteful number, since it uses less digits than its factorization.

143256061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12036 (or 12023 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 143256061 is about 11968.9624028150. The cubic root of 143256061 is about 523.2440941684.

The spelling of 143256061 in words is "one hundred forty-three million, two hundred fifty-six thousand, sixty-one".