420251201 has 4 divisors (see below), whose sum is σ = 426170304. Its totient is φ = 414332100.

The previous prime is 420251191. The next prime is 420251207. The reversal of 420251201 is 102152024.

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 a de Polignac number, because none of the positive numbers 2^k-420251201 is a prime.

It is a super-2 number, since 2×420251201² = 353222143883884802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420251201.

It is not an unprimeable number, because it can be changed into a prime (420251207) 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, 2959445 + ... + 2959586.

It is an arithmetic number, because the mean of its divisors is an integer number (106542576).

Almost surely, 2^420251201 is an apocalyptic number.

It is an amenable number.

420251201 is a deficient number, since it is larger than the sum of its proper divisors (5919103).

420251201 is an equidigital number, since it uses as much as digits as its factorization.

420251201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919102.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 420251201 is about 20500.0292926620. The cubic root of 420251201 is about 749.0365115240.

The spelling of 420251201 in words is "four hundred twenty million, two hundred fifty-one thousand, two hundred one".