142089511 has 2 divisors, whose sum is σ = 142089512. Its totient is φ = 142089510.

The previous prime is 142089439. The next prime is 142089517. The reversal of 142089511 is 115980241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142089511 - 2¹³ = 142081319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142089517) 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, 71044755 + 71044756.

It is an arithmetic number, because the mean of its divisors is an integer number (71044756).

Almost surely, 2^142089511 is an apocalyptic number.

142089511 is a deficient number, since it is larger than the sum of its proper divisors (1).

142089511 is an equidigital number, since it uses as much as digits as its factorization.

142089511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 142089511 is about 11920.1304942521. The cubic root of 142089511 is about 521.8199432327.

The spelling of 142089511 in words is "one hundred forty-two million, eighty-nine thousand, five hundred eleven".