201623745 has 8 divisors (see below), whose sum is σ = 322598016. Its totient is φ = 107532656.

The previous prime is 201623743. The next prime is 201623761. The reversal of 201623745 is 547326102.

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 201623745 - 2¹ = 201623743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201623743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6720777 + ... + 6720806.

It is an arithmetic number, because the mean of its divisors is an integer number (40324752).

Almost surely, 2^201623745 is an apocalyptic number.

It is an amenable number.

201623745 is a deficient number, since it is larger than the sum of its proper divisors (120974271).

201623745 is a wasteful number, since it uses less digits than its factorization.

201623745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13441591.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 201623745 is about 14199.4276293096. The cubic root of 201623745 is about 586.3819036325.

Adding to 201623745 its reverse (547326102), we get a palindrome (748949847).

The spelling of 201623745 in words is "two hundred one million, six hundred twenty-three thousand, seven hundred forty-five".