142248711 has 16 divisors (see below), whose sum is σ = 207537408. Its totient is φ = 85948800.

The previous prime is 142248709. The next prime is 142248719. The reversal of 142248711 is 117842241.

It is not a de Polignac number, because 142248711 - 2¹ = 142248709 is a prime.

It is a super-3 number, since 3×142248711³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142248719) 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 in 15 ways as a sum of consecutive naturals, for example, 4726 + ... + 17516.

It is an arithmetic number, because the mean of its divisors is an integer number (12971088).

Almost surely, 2^142248711 is an apocalyptic number.

142248711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142248711 is a deficient number, since it is larger than the sum of its proper divisors (65288697).

142248711 is a wasteful number, since it uses less digits than its factorization.

142248711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13142.

The product of its digits is 3584, while the sum is 30.

The square root of 142248711 is about 11926.8064040631. The cubic root of 142248711 is about 522.0147564126.

The spelling of 142248711 in words is "one hundred forty-two million, two hundred forty-eight thousand, seven hundred eleven".