245099401 has 4 divisors (see below), whose sum is σ = 249723972. Its totient is φ = 240474832.

The previous prime is 245099381. The next prime is 245099417. The reversal of 245099401 is 104990542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 162307600 + 82791801 = 12740^2 + 9099^2 .

It is a cyclic number.

It is not a de Polignac number, because 245099401 - 2⁵ = 245099369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245099801) 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 3 ways as a sum of consecutive naturals, for example, 2312206 + ... + 2312311.

It is an arithmetic number, because the mean of its divisors is an integer number (62430993).

Almost surely, 2^245099401 is an apocalyptic number.

It is an amenable number.

245099401 is a deficient number, since it is larger than the sum of its proper divisors (4624571).

245099401 is an equidigital number, since it uses as much as digits as its factorization.

245099401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4624570.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 245099401 is about 15655.6507689716. The cubic root of 245099401 is about 625.8170868450.

The spelling of 245099401 in words is "two hundred forty-five million, ninety-nine thousand, four hundred one".