143749049 has 2 divisors, whose sum is σ = 143749050. Its totient is φ = 143749048.

The previous prime is 143748971. The next prime is 143749063. The reversal of 143749049 is 940947341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107267449 + 36481600 = 10357^2 + 6040^2 .

It is a cyclic number.

It is not a de Polignac number, because 143749049 - 2²⁴ = 126971833 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 143748997 and 143749015.

It is not a weakly prime, because it can be changed into another prime (143749349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71874524 + 71874525.

It is an arithmetic number, because the mean of its divisors is an integer number (71874525).

Almost surely, 2^143749049 is an apocalyptic number.

It is an amenable number.

143749049 is a deficient number, since it is larger than the sum of its proper divisors (1).

143749049 is an equidigital number, since it uses as much as digits as its factorization.

143749049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 143749049 is about 11989.5391487747. The cubic root of 143749049 is about 523.8436213917.

The spelling of 143749049 in words is "one hundred forty-three million, seven hundred forty-nine thousand, forty-nine".