1425213201 has 4 divisors (see below), whose sum is σ = 1900284272. Its totient is φ = 950142132.

The previous prime is 1425213191. The next prime is 1425213221. The reversal of 1425213201 is 1023125241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1023125241 = 3 ⋅341041747.

It is not a de Polignac number, because 1425213201 - 2⁷ = 1425213073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425213221) 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, 237535531 + ... + 237535536.

It is an arithmetic number, because the mean of its divisors is an integer number (475071068).

Almost surely, 2^1425213201 is an apocalyptic number.

It is an amenable number.

1425213201 is a deficient number, since it is larger than the sum of its proper divisors (475071071).

1425213201 is an equidigital number, since it uses as much as digits as its factorization.

1425213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475071070.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1425213201 is about 37751.9959869674. The cubic root of 1425213201 is about 1125.3646754545.

Adding to 1425213201 its reverse (1023125241), we get a palindrome (2448338442).

The spelling of 1425213201 in words is "one billion, four hundred twenty-five million, two hundred thirteen thousand, two hundred one".