201253401 has 6 divisors (see below), whose sum is σ = 290699370. Its totient is φ = 134168928.

The previous prime is 201253399. The next prime is 201253439. The reversal of 201253401 is 104352102.

It can be written as a sum of positive squares in only one way, i.e., 165791376 + 35462025 = 12876^2 + 5955^2 .

It is not a de Polignac number, because 201253401 - 2¹ = 201253399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201253601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11180736 + ... + 11180753.

It is an arithmetic number, because the mean of its divisors is an integer number (48449895).

Almost surely, 2^201253401 is an apocalyptic number.

It is an amenable number.

201253401 is a deficient number, since it is larger than the sum of its proper divisors (89445969).

201253401 is a wasteful number, since it uses less digits than its factorization.

201253401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22361495 (or 22361492 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 201253401 is about 14186.3808281041. The cubic root of 201253401 is about 586.0226600361.

The spelling of 201253401 in words is "two hundred one million, two hundred fifty-three thousand, four hundred one".