201231134 has 16 divisors (see below), whose sum is σ = 327410160. Its totient is φ = 92206080.

The previous prime is 201231127. The next prime is 201231167. The reversal of 201231134 is 431132102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24227 + ... + 31454.

It is an arithmetic number, because the mean of its divisors is an integer number (20463135).

Almost surely, 2^201231134 is an apocalyptic number.

201231134 is a deficient number, since it is larger than the sum of its proper divisors (126179026).

201231134 is a wasteful number, since it uses less digits than its factorization.

201231134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55835.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 201231134 is about 14185.5960043983. The cubic root of 201231134 is about 586.0010464091.

Adding to 201231134 its reverse (431132102), we get a palindrome (632363236).

The spelling of 201231134 in words is "two hundred one million, two hundred thirty-one thousand, one hundred thirty-four".