142557 has 16 divisors (see below), whose sum is σ = 208320. Its totient is φ = 86400.

The previous prime is 142553. The next prime is 142559. The reversal of 142557 is 755241.

It is not a de Polignac number, because 142557 - 2² = 142553 is a prime.

142557 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142557.

It is not an unprimeable number, because it can be changed into a prime (142553) 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, 2307 + ... + 2367.

It is an arithmetic number, because the mean of its divisors is an integer number (13020).

2¹⁴²⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

142557 is a deficient number, since it is larger than the sum of its proper divisors (65763).

142557 is a wasteful number, since it uses less digits than its factorization.

142557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124.

The product of its digits is 1400, while the sum is 24.

The square root of 142557 is about 377.5672125596. The cubic root of 142557 is about 52.2391597056.

Adding to 142557 its reverse (755241), we get a palindrome (897798).

It can be divided in two parts, 1425 and 57, that multiplied together give a square (81225 = 285²).

The spelling of 142557 in words is "one hundred forty-two thousand, five hundred fifty-seven".