142232449 has 2 divisors, whose sum is σ = 142232450. Its totient is φ = 142232448.

The previous prime is 142232417. The next prime is 142232471. The reversal of 142232449 is 944232241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134212225 + 8020224 = 11585^2 + 2832^2 .

It is a cyclic number.

It is not a de Polignac number, because 142232449 - 2⁵ = 142232417 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142232449.

It is not a weakly prime, because it can be changed into another prime (172232449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71116224 + 71116225.

It is an arithmetic number, because the mean of its divisors is an integer number (71116225).

Almost surely, 2^142232449 is an apocalyptic number.

It is an amenable number.

142232449 is a deficient number, since it is larger than the sum of its proper divisors (1).

142232449 is an equidigital number, since it uses as much as digits as its factorization.

142232449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 31.

The square root of 142232449 is about 11926.1246429844. The cubic root of 142232449 is about 521.9948632564.

The spelling of 142232449 in words is "one hundred forty-two million, two hundred thirty-two thousand, four hundred forty-nine".