142441477 has 4 divisors (see below), whose sum is σ = 142652556. Its totient is φ = 142230400.

The previous prime is 142441459. The next prime is 142441489. The reversal of 142441477 is 774144241.

142441477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117700801 + 24740676 = 10849^2 + 4974^2 .

It is a cyclic number.

It is not a de Polignac number, because 142441477 - 2²³ = 134052869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142441427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104524 + ... + 105877.

It is an arithmetic number, because the mean of its divisors is an integer number (35663139).

Almost surely, 2^142441477 is an apocalyptic number.

It is an amenable number.

142441477 is a deficient number, since it is larger than the sum of its proper divisors (211079).

142441477 is an equidigital number, since it uses as much as digits as its factorization.

142441477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211078.

The product of its digits is 25088, while the sum is 34.

The square root of 142441477 is about 11934.8848758587. The cubic root of 142441477 is about 522.2504498817.

The spelling of 142441477 in words is "one hundred forty-two million, four hundred forty-one thousand, four hundred seventy-seven".