142901 has 6 divisors (see below), whose sum is σ = 157206. Its totient is φ = 129800.

The previous prime is 142897. The next prime is 142903. The reversal of 142901 is 109241.

It is a happy number.

142901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 139876 + 3025 = 374^2 + 55^2 .

It is not a de Polignac number, because 142901 - 2² = 142897 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 142901.

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 142901.

It is not an unprimeable number, because it can be changed into a prime (142903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470 + ... + 711.

It is an arithmetic number, because the mean of its divisors is an integer number (26201).

2¹⁴²⁹⁰¹ is an apocalyptic number.

142901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142901 is a deficient number, since it is larger than the sum of its proper divisors (14305).

142901 is a wasteful number, since it uses less digits than its factorization.

142901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 142901 is about 378.0224861037. The cubic root of 142901 is about 52.2811448666.

Subtracting from 142901 its sum of digits (17), we obtain a square (142884 = 378²).

The spelling of 142901 in words is "one hundred forty-two thousand, nine hundred one".