201145342 has 4 divisors (see below), whose sum is σ = 301718016. Its totient is φ = 100572670.

The previous prime is 201145279. The next prime is 201145361. The reversal of 201145342 is 243541102.

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, 50286334 + ... + 50286337.

It is an arithmetic number, because the mean of its divisors is an integer number (75429504).

Almost surely, 2^201145342 is an apocalyptic number.

201145342 is a deficient number, since it is larger than the sum of its proper divisors (100572674).

201145342 is a wasteful number, since it uses less digits than its factorization.

201145342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100572673.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 201145342 is about 14182.5717696051. The cubic root of 201145342 is about 585.9177568653.

Adding to 201145342 its reverse (243541102), we get a palindrome (444686444).

The spelling of 201145342 in words is "two hundred one million, one hundred forty-five thousand, three hundred forty-two".