143561349 has 8 divisors (see below), whose sum is σ = 212683520. Its totient is φ = 95707548.

The previous prime is 143561329. The next prime is 143561371. The reversal of 143561349 is 943165341.

143561349 is a `hidden beast` number, since 1 + 4 + 35 + 613 + 4 + 9 = 666.

It is not a de Polignac number, because 143561349 - 2⁵ = 143561317 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 (143561329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2658517 + ... + 2658570.

It is an arithmetic number, because the mean of its divisors is an integer number (26585440).

Almost surely, 2^143561349 is an apocalyptic number.

It is an amenable number.

143561349 is a deficient number, since it is larger than the sum of its proper divisors (69122171).

143561349 is an equidigital number, since it uses as much as digits as its factorization.

143561349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5317096 (or 5317090 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 143561349 is about 11981.7089348724. The cubic root of 143561349 is about 523.6155195351.

The spelling of 143561349 in words is "one hundred forty-three million, five hundred sixty-one thousand, three hundred forty-nine".