142047349 has 2 divisors, whose sum is σ = 142047350. Its totient is φ = 142047348.

The previous prime is 142047319. The next prime is 142047377. The reversal of 142047349 is 943740241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128097124 + 13950225 = 11318^2 + 3735^2 .

It is a cyclic number.

It is not a de Polignac number, because 142047349 - 2¹¹ = 142045301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142047319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71023674 + 71023675.

It is an arithmetic number, because the mean of its divisors is an integer number (71023675).

Almost surely, 2^142047349 is an apocalyptic number.

It is an amenable number.

142047349 is a deficient number, since it is larger than the sum of its proper divisors (1).

142047349 is an equidigital number, since it uses as much as digits as its factorization.

142047349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 142047349 is about 11918.3618421325. The cubic root of 142047349 is about 521.7683251863.

The spelling of 142047349 in words is "one hundred forty-two million, forty-seven thousand, three hundred forty-nine".