245009899 has 8 divisors (see below), whose sum is σ = 260124480. Its totient is φ = 229973376.

The previous prime is 245009837. The next prime is 245009903. The reversal of 245009899 is 998900542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245009899 - 2¹³ = 245001707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245009299) 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 7 ways as a sum of consecutive naturals, for example, 12979 + ... + 25660.

It is an arithmetic number, because the mean of its divisors is an integer number (32515560).

Almost surely, 2^245009899 is an apocalyptic number.

245009899 is a deficient number, since it is larger than the sum of its proper divisors (15114581).

245009899 is a wasteful number, since it uses less digits than its factorization.

245009899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39029.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 245009899 is about 15652.7920512604. The cubic root of 245009899 is about 625.7409018361.

The spelling of 245009899 in words is "two hundred forty-five million, nine thousand, eight hundred ninety-nine".