245009902 has 8 divisors (see below), whose sum is σ = 386857800. Its totient is φ = 116057304.

The previous prime is 245009837. The next prime is 245009903. The reversal of 245009902 is 209900542.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245009903) 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 3 ways as a sum of consecutive naturals, for example, 3223777 + ... + 3223852.

It is an arithmetic number, because the mean of its divisors is an integer number (48357225).

Almost surely, 2^245009902 is an apocalyptic number.

245009902 is a deficient number, since it is larger than the sum of its proper divisors (141847898).

245009902 is a wasteful number, since it uses less digits than its factorization.

245009902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6447650.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 245009902 is about 15652.7921470899. The cubic root of 245009902 is about 625.7409043900.

The spelling of 245009902 in words is "two hundred forty-five million, nine thousand, nine hundred two".