142203601 has 4 divisors (see below), whose sum is σ = 142242304. Its totient is φ = 142164900.

The previous prime is 142203571. The next prime is 142203613. The reversal of 142203601 is 106302241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 106302241 = 17 ⋅6253073.

It is a cyclic number.

It is not a de Polignac number, because 142203601 - 2¹³ = 142195409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142203001) 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, 13185 + ... + 21406.

It is an arithmetic number, because the mean of its divisors is an integer number (35560576).

Almost surely, 2^142203601 is an apocalyptic number.

It is an amenable number.

142203601 is a deficient number, since it is larger than the sum of its proper divisors (38703).

142203601 is an equidigital number, since it uses as much as digits as its factorization.

142203601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38702.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 142203601 is about 11924.9151359664. The cubic root of 142203601 is about 521.9595700302.

Adding to 142203601 its reverse (106302241), we get a palindrome (248505842).

The spelling of 142203601 in words is "one hundred forty-two million, two hundred three thousand, six hundred one".