142720571 has 16 divisors (see below), whose sum is σ = 177619200. Its totient is φ = 111894048.

The previous prime is 142720561. The next prime is 142720597. The reversal of 142720571 is 175027241.

142720571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142720571 - 2¹⁴ = 142704187 is a prime.

It is a super-2 number, since 2×142720571² = 40738322773132082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (142720561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14645 + ... + 22358.

It is an arithmetic number, because the mean of its divisors is an integer number (11101200).

Almost surely, 2^142720571 is an apocalyptic number.

142720571 is a deficient number, since it is larger than the sum of its proper divisors (34898629).

142720571 is a wasteful number, since it uses less digits than its factorization.

142720571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37058.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 142720571 is about 11946.5715165482. The cubic root of 142720571 is about 522.5913194020.

The spelling of 142720571 in words is "one hundred forty-two million, seven hundred twenty thousand, five hundred seventy-one".