201025401 has 4 divisors (see below), whose sum is σ = 268033872. Its totient is φ = 134016932.

The previous prime is 201025369. The next prime is 201025417. The reversal of 201025401 is 104520102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201025401 - 2⁵ = 201025369 is a prime.

It is a super-2 number, since 2×201025401² = 80822423694421602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201025471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33504231 + ... + 33504236.

It is an arithmetic number, because the mean of its divisors is an integer number (67008468).

Almost surely, 2^201025401 is an apocalyptic number.

It is an amenable number.

201025401 is a deficient number, since it is larger than the sum of its proper divisors (67008471).

201025401 is an equidigital number, since it uses as much as digits as its factorization.

201025401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67008470.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 201025401 is about 14178.3426746570. The cubic root of 201025401 is about 585.8012747007.

Adding to 201025401 its reverse (104520102), we get a palindrome (305545503).

The spelling of 201025401 in words is "two hundred one million, twenty-five thousand, four hundred one".