143918061 has 16 divisors (see below), whose sum is σ = 228839424. Its totient is φ = 78663024.

The previous prime is 143918059. The next prime is 143918069. The reversal of 143918061 is 160819341.

It is not a de Polignac number, because 143918061 - 2¹ = 143918059 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143918069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148501 + ... + 149466.

It is an arithmetic number, because the mean of its divisors is an integer number (14302464).

Almost surely, 2^143918061 is an apocalyptic number.

It is an amenable number.

143918061 is a deficient number, since it is larger than the sum of its proper divisors (84921363).

143918061 is a wasteful number, since it uses less digits than its factorization.

143918061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298000.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 143918061 is about 11996.5853891847. The cubic root of 143918061 is about 524.0488428822.

The spelling of 143918061 in words is "one hundred forty-three million, nine hundred eighteen thousand, sixty-one".