20095142 has 4 divisors (see below), whose sum is σ = 30142716. Its totient is φ = 10047570.

The previous prime is 20095133. The next prime is 20095171. The reversal of 20095142 is 24159002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5023784 + ... + 5023787.

It is an arithmetic number, because the mean of its divisors is an integer number (7535679).

Almost surely, 2^20095142 is an apocalyptic number.

20095142 is a deficient number, since it is larger than the sum of its proper divisors (10047574).

20095142 is a wasteful number, since it uses less digits than its factorization.

20095142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10047573.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20095142 is about 4482.7605334213. The cubic root of 20095142 is about 271.8715061338.

The spelling of 20095142 in words is "twenty million, ninety-five thousand, one hundred forty-two".