142556101 has 16 divisors (see below), whose sum is σ = 154106496. Its totient is φ = 131383296.

The previous prime is 142556087. The next prime is 142556129. The reversal of 142556101 is 101655241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142556101 - 2¹⁵ = 142523333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142556131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292480 + ... + 292966.

It is an arithmetic number, because the mean of its divisors is an integer number (9631656).

Almost surely, 2^142556101 is an apocalyptic number.

It is an amenable number.

142556101 is a deficient number, since it is larger than the sum of its proper divisors (11550395).

142556101 is a wasteful number, since it uses less digits than its factorization.

142556101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 142556101 is about 11939.6859673946. The cubic root of 142556101 is about 522.3904989431.

The spelling of 142556101 in words is "one hundred forty-two million, five hundred fifty-six thousand, one hundred one".