142207069 has 2 divisors, whose sum is σ = 142207070. Its totient is φ = 142207068.

The previous prime is 142207061. The next prime is 142207099. The reversal of 142207069 is 960702241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142205625 + 1444 = 11925^2 + 38^2 .

It is an emirp because it is prime and its reverse (960702241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142207069 - 2³ = 142207061 is a prime.

It is a super-2 number, since 2×142207069² = 40445700947141522, which contains 22 as substring.

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 142207069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142207061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71103534 + 71103535.

It is an arithmetic number, because the mean of its divisors is an integer number (71103535).

Almost surely, 2^142207069 is an apocalyptic number.

It is an amenable number.

142207069 is a deficient number, since it is larger than the sum of its proper divisors (1).

142207069 is an equidigital number, since it uses as much as digits as its factorization.

142207069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 142207069 is about 11925.0605449197. The cubic root of 142207069 is about 521.9638131039.

The spelling of 142207069 in words is "one hundred forty-two million, two hundred seven thousand, sixty-nine".