142104001 has 4 divisors (see below), whose sum is σ = 153035092. Its totient is φ = 131172912.

The previous prime is 142103993. The next prime is 142104007. The reversal of 142104001 is 100401241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39992976 + 102111025 = 6324^2 + 10105^2 .

It is not a de Polignac number, because 142104001 - 2³ = 142103993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 10931077 = 142104001 / (1 + 4 + 2 + 1 + 0 + 4 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142104007) 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, 5465526 + ... + 5465551.

It is an arithmetic number, because the mean of its divisors is an integer number (38258773).

Almost surely, 2^142104001 is an apocalyptic number.

It is an amenable number.

142104001 is a deficient number, since it is larger than the sum of its proper divisors (10931091).

142104001 is a wasteful number, since it uses less digits than its factorization.

142104001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10931090.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 142104001 is about 11920.7382741171. The cubic root of 142104001 is about 521.8376806760.

Adding to 142104001 its reverse (100401241), we get a palindrome (242505242).

The spelling of 142104001 in words is "one hundred forty-two million, one hundred four thousand, one".