142148001 has 4 divisors (see below), whose sum is σ = 189530672. Its totient is φ = 94765332.

The previous prime is 142147979. The next prime is 142148021. The reversal of 142148001 is 100841241.

It is a happy number.

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 not a de Polignac number, because 142148001 - 2¹⁸ = 141885857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142148021) 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, 23691331 + ... + 23691336.

It is an arithmetic number, because the mean of its divisors is an integer number (47382668).

Almost surely, 2^142148001 is an apocalyptic number.

It is an amenable number.

142148001 is a deficient number, since it is larger than the sum of its proper divisors (47382671).

142148001 is an equidigital number, since it uses as much as digits as its factorization.

142148001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47382670.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 142148001 is about 11922.5836545608. The cubic root of 142148001 is about 521.8915343991.

Adding to 142148001 its reverse (100841241), we get a palindrome (242989242).

The spelling of 142148001 in words is "one hundred forty-two million, one hundred forty-eight thousand, one".