245201251 has 16 divisors (see below), whose sum is σ = 274147200. Its totient is φ = 217945728.

The previous prime is 245201219. The next prime is 245201287. The reversal of 245201251 is 152102542.

It is a cyclic number.

It is not a de Polignac number, because 245201251 - 2⁵ = 245201219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245201291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121416 + ... + 123418.

It is an arithmetic number, because the mean of its divisors is an integer number (17134200).

Almost surely, 2^245201251 is an apocalyptic number.

245201251 is a deficient number, since it is larger than the sum of its proper divisors (28945949).

245201251 is a wasteful number, since it uses less digits than its factorization.

245201251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 245201251 is about 15658.9032502280. The cubic root of 245201251 is about 625.9037600386.

Adding to 245201251 its reverse (152102542), we get a palindrome (397303793).

The spelling of 245201251 in words is "two hundred forty-five million, two hundred one thousand, two hundred fifty-one".