142556141 has 24 divisors (see below), whose sum is σ = 184768920. Its totient is φ = 108888192.

The previous prime is 142556131. The next prime is 142556149. The reversal of 142556141 is 141655241.

It can be written as a sum of positive squares in 4 ways, for example, as 5900041 + 136656100 = 2429^2 + 11690^2 .

It is not a de Polignac number, because 142556141 - 2¹⁴ = 142539757 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142556149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14615 + ... + 22331.

It is an arithmetic number, because the mean of its divisors is an integer number (7698705).

Almost surely, 2^142556141 is an apocalyptic number.

It is an amenable number.

142556141 is a deficient number, since it is larger than the sum of its proper divisors (42212779).

142556141 is a wasteful number, since it uses less digits than its factorization.

142556141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7773 (or 7766 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 142556141 is about 11939.6876424804. The cubic root of 142556141 is about 522.3905478025.

The spelling of 142556141 in words is "one hundred forty-two million, five hundred fifty-six thousand, one hundred forty-one".