201042637 has 8 divisors (see below), whose sum is σ = 202463712. Its totient is φ = 199626000.

The previous prime is 201042631. The next prime is 201042643. The reversal of 201042637 is 736240102.

It is an interprime number because it is at equal distance from previous prime (201042631) and next prime (201042643).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201042637 - 2²³ = 192654029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201042631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190762 + ... + 191812.

It is an arithmetic number, because the mean of its divisors is an integer number (25307964).

Almost surely, 2^201042637 is an apocalyptic number.

It is an amenable number.

201042637 is a deficient number, since it is larger than the sum of its proper divisors (1421075).

201042637 is a wasteful number, since it uses less digits than its factorization.

201042637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 201042637 is about 14178.9504900751. The cubic root of 201042637 is about 585.8180165024.

Adding to 201042637 its reverse (736240102), we get a palindrome (937282739).

The spelling of 201042637 in words is "two hundred one million, forty-two thousand, six hundred thirty-seven".