201501427 has 2 divisors, whose sum is σ = 201501428. Its totient is φ = 201501426.

The previous prime is 201501407. The next prime is 201501463. The reversal of 201501427 is 724105102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201501427 - 2⁷ = 201501299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201501398 and 201501407.

It is not a weakly prime, because it can be changed into another prime (201501407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100750713 + 100750714.

It is an arithmetic number, because the mean of its divisors is an integer number (100750714).

Almost surely, 2^201501427 is an apocalyptic number.

201501427 is a deficient number, since it is larger than the sum of its proper divisors (1).

201501427 is an equidigital number, since it uses as much as digits as its factorization.

201501427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 201501427 is about 14195.1198304206. The cubic root of 201501427 is about 586.2633005864.

Adding to 201501427 its reverse (724105102), we get a palindrome (925606529).

The spelling of 201501427 in words is "two hundred one million, five hundred one thousand, four hundred twenty-seven".