245117492 has 24 divisors (see below), whose sum is σ = 455434560. Its totient is φ = 115032960.

The previous prime is 245117479. The next prime is 245117497. The reversal of 245117492 is 294711542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245117497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21017 + ... + 30527.

It is an arithmetic number, because the mean of its divisors is an integer number (18976440).

Almost surely, 2^245117492 is an apocalyptic number.

It is an amenable number.

245117492 is a deficient number, since it is larger than the sum of its proper divisors (210317068).

245117492 is a wasteful number, since it uses less digits than its factorization.

245117492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9911 (or 9909 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 245117492 is about 15656.2285369114. The cubic root of 245117492 is about 625.8324838341.

The spelling of 245117492 in words is "two hundred forty-five million, one hundred seventeen thousand, four hundred ninety-two".