142911720 has 96 divisors (see below), whose sum is σ = 530824320. Its totient is φ = 32664960.

The previous prime is 142911701. The next prime is 142911721. The reversal of 142911720 is 27119241.

It is not an unprimeable number, because it can be changed into a prime (142911721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25836 + ... + 30875.

It is an arithmetic number, because the mean of its divisors is an integer number (5529420).

Almost surely, 2^142911720 is an apocalyptic number.

142911720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142911720 is an abundant number, since it is smaller than the sum of its proper divisors (387912600).

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

142911720 is a wasteful number, since it uses less digits than its factorization.

142911720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56735 (or 56728 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 142911720 is about 11954.5690010138. The cubic root of 142911720 is about 522.8245215824.

The spelling of 142911720 in words is "one hundred forty-two million, nine hundred eleven thousand, seven hundred twenty".