142711744 has 56 divisors (see below), whose sum is σ = 325871840. Its totient is φ = 60742656.

The previous prime is 142711733. The next prime is 142711759. The reversal of 142711744 is 447117241.

It is a tau number, because it is divible by the number of its divisors (56).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69322 + ... + 71350.

It is an arithmetic number, because the mean of its divisors is an integer number (5819140).

Almost surely, 2^142711744 is an apocalyptic number.

142711744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142711744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162935920).

142711744 is an abundant number, since it is smaller than the sum of its proper divisors (183160096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142711744 is a wasteful number, since it uses less digits than its factorization.

142711744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205 (or 2195 counting only the distinct ones).

The product of its digits is 6272, while the sum is 31.

The square root of 142711744 is about 11946.2020742996. The cubic root of 142711744 is about 522.5805454151.

Adding to 142711744 its reverse (447117241), we get a palindrome (589828985).

The spelling of 142711744 in words is "one hundred forty-two million, seven hundred eleven thousand, seven hundred forty-four".