142253249 has 2 divisors, whose sum is σ = 142253250. Its totient is φ = 142253248.

The previous prime is 142253233. The next prime is 142253273. The reversal of 142253249 is 942352241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101203600 + 41049649 = 10060^2 + 6407^2 .

It is a cyclic number.

It is not a de Polignac number, because 142253249 - 2⁴ = 142253233 is a prime.

It is a super-4 number, since 4×142253249⁴ (a number of 34 digits) contains 4444 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142253549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71126624 + 71126625.

It is an arithmetic number, because the mean of its divisors is an integer number (71126625).

Almost surely, 2^142253249 is an apocalyptic number.

It is an amenable number.

142253249 is a deficient number, since it is larger than the sum of its proper divisors (1).

142253249 is an equidigital number, since it uses as much as digits as its factorization.

142253249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 142253249 is about 11926.9966462643. The cubic root of 142253249 is about 522.0203074360.

The spelling of 142253249 in words is "one hundred forty-two million, two hundred fifty-three thousand, two hundred forty-nine".