142124201 has 4 divisors (see below), whose sum is σ = 142581504. Its totient is φ = 141666900.

The previous prime is 142124197. The next prime is 142124209. The reversal of 142124201 is 102421241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142124201 - 2² = 142124197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142124201.

It is not an unprimeable number, because it can be changed into a prime (142124209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228185 + ... + 228806.

It is an arithmetic number, because the mean of its divisors is an integer number (35645376).

Almost surely, 2^142124201 is an apocalyptic number.

It is an amenable number.

142124201 is a deficient number, since it is larger than the sum of its proper divisors (457303).

142124201 is an equidigital number, since it uses as much as digits as its factorization.

142124201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457302.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 142124201 is about 11921.5855069701. The cubic root of 142124201 is about 521.8624058108.

Adding to 142124201 its reverse (102421241), we get a palindrome (244545442).

The spelling of 142124201 in words is "one hundred forty-two million, one hundred twenty-four thousand, two hundred one".