245140299 has 36 divisors (see below), whose sum is σ = 376586496. Its totient is φ = 153637344.

The previous prime is 245140249. The next prime is 245140303. The reversal of 245140299 is 992041542.

245140299 is a `hidden beast` number, since 245 + 1 + 402 + 9 + 9 = 666.

It is not a de Polignac number, because 245140299 - 2¹¹ = 245138251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245140249) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 639862 + ... + 640244.

It is an arithmetic number, because the mean of its divisors is an integer number (10460736).

Almost surely, 2^245140299 is an apocalyptic number.

245140299 is a deficient number, since it is larger than the sum of its proper divisors (131446197).

245140299 is a wasteful number, since it uses less digits than its factorization.

245140299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 245140299 is about 15656.9568882334. The cubic root of 245140299 is about 625.8518934631.

The spelling of 245140299 in words is "two hundred forty-five million, one hundred forty thousand, two hundred ninety-nine".