142477 has 8 divisors (see below), whose sum is σ = 156600. Its totient is φ = 129472.

The previous prime is 142469. The next prime is 142501. The reversal of 142477 is 774241.

It can be written as a sum of positive squares in 4 ways, for example, as 27556 + 114921 = 166^2 + 339^2 .

It is not a de Polignac number, because 142477 - 2³ = 142469 is a prime.

142477 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4899 + ... + 4927.

It is an arithmetic number, because the mean of its divisors is an integer number (19575).

2¹⁴²⁴⁷⁷ is an apocalyptic number.

142477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

142477 is a deficient number, since it is larger than the sum of its proper divisors (14123).

142477 is an frugal number, since it uses more digits than its factorization.

142477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 46 counting only the distinct ones).

The product of its digits is 1568, while the sum is 25.

The square root of 142477 is about 377.4612562900. The cubic root of 142477 is about 52.2293860367.

The spelling of 142477 in words is "one hundred forty-two thousand, four hundred seventy-seven", and thus it is an iban number.