142137001 has 4 divisors (see below), whose sum is σ = 142240000. Its totient is φ = 142034004.

The previous prime is 142136957. The next prime is 142137007. The reversal of 142137001 is 100731241.

142137001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142137001 - 2¹³ = 142128809 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 142137001.

It is not an unprimeable number, because it can be changed into a prime (142137007) 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, 49401 + ... + 52198.

It is an arithmetic number, because the mean of its divisors is an integer number (35560000).

Almost surely, 2^142137001 is an apocalyptic number.

It is an amenable number.

142137001 is a deficient number, since it is larger than the sum of its proper divisors (102999).

142137001 is a wasteful number, since it uses less digits than its factorization.

142137001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102998.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 142137001 is about 11922.1223362286. The cubic root of 142137001 is about 521.8780720103.

Adding to 142137001 its reverse (100731241), we get a palindrome (242868242).

The spelling of 142137001 in words is "one hundred forty-two million, one hundred thirty-seven thousand, one".