143664741 has 24 divisors (see below), whose sum is σ = 226905120. Its totient is φ = 86868000.

The previous prime is 143664721. The next prime is 143664743. The reversal of 143664741 is 147466341.

143664741 is a `hidden beast` number, since 1 + 4 + 3 + 6 + 647 + 4 + 1 = 666.

It is not a de Polignac number, because 143664741 - 2⁷ = 143664613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143664696 and 143664705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143664743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48966 + ... + 51816.

It is an arithmetic number, because the mean of its divisors is an integer number (9454380).

Almost surely, 2^143664741 is an apocalyptic number.

143664741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143664741 is a deficient number, since it is larger than the sum of its proper divisors (83240379).

143664741 is a wasteful number, since it uses less digits than its factorization.

143664741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3374 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 143664741 is about 11986.0227348358. The cubic root of 143664741 is about 523.7411909288.

The spelling of 143664741 in words is "one hundred forty-three million, six hundred sixty-four thousand, seven hundred forty-one".