245402201 has 4 divisors (see below), whose sum is σ = 267711504. Its totient is φ = 223092900.

The previous prime is 245402197. The next prime is 245402219. The reversal of 245402201 is 102204542.

It is a happy number.

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 245402201 - 2² = 245402197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245402221) 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, 11154635 + ... + 11154656.

It is an arithmetic number, because the mean of its divisors is an integer number (66927876).

Almost surely, 2^245402201 is an apocalyptic number.

It is an amenable number.

245402201 is a deficient number, since it is larger than the sum of its proper divisors (22309303).

245402201 is a wasteful number, since it uses less digits than its factorization.

245402201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22309302.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 245402201 is about 15665.3184136167. The cubic root of 245402201 is about 626.0746958403.

Adding to 245402201 its reverse (102204542), we get a palindrome (347606743).

The spelling of 245402201 in words is "two hundred forty-five million, four hundred two thousand, two hundred one".