245140479 has 8 divisors (see below), whose sum is σ = 363171120. Its totient is φ = 163426968.

The previous prime is 245140477. The next prime is 245140487. The reversal of 245140479 is 974041542.

It is a happy number.

245140479 is a `hidden beast` number, since 2 + 45 + 140 + 479 = 666.

It is not a de Polignac number, because 245140479 - 2¹ = 245140477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245140477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4539612 + ... + 4539665.

It is an arithmetic number, because the mean of its divisors is an integer number (45396390).

Almost surely, 2^245140479 is an apocalyptic number.

245140479 is a deficient number, since it is larger than the sum of its proper divisors (118030641).

245140479 is an equidigital number, since it uses as much as digits as its factorization.

245140479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9079286 (or 9079280 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 245140479 is about 15656.9626364758. The cubic root of 245140479 is about 625.8520466452.

The spelling of 245140479 in words is "two hundred forty-five million, one hundred forty thousand, four hundred seventy-nine".