245122906 has 48 divisors (see below), whose sum is σ = 441492480. Its totient is φ = 99973440.

The previous prime is 245122901. The next prime is 245122909. The reversal of 245122906 is 609221542.

245122906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245122901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1283271 + ... + 1283461.

It is an arithmetic number, because the mean of its divisors is an integer number (9197760).

Almost surely, 2^245122906 is an apocalyptic number.

245122906 is a deficient number, since it is larger than the sum of its proper divisors (196369574).

245122906 is a wasteful number, since it uses less digits than its factorization.

245122906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 245122906 is about 15656.4014383893. The cubic root of 245122906 is about 625.8370914641.

The spelling of 245122906 in words is "two hundred forty-five million, one hundred twenty-two thousand, nine hundred six".