245291136 has 64 divisors (see below), whose sum is σ = 679907520. Its totient is φ = 78205952.

The previous prime is 245291131. The next prime is 245291149. The reversal of 245291136 is 631192542.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 245291097 and 245291106.

It is not an unprimeable number, because it can be changed into a prime (245291131) 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, 5055 + ... + 22718.

It is an arithmetic number, because the mean of its divisors is an integer number (10623555).

Almost surely, 2^245291136 is an apocalyptic number.

It is an amenable number.

245291136 is an abundant number, since it is smaller than the sum of its proper divisors (434616384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245291136 is a wasteful number, since it uses less digits than its factorization.

245291136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27813 (or 27801 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 245291136 is about 15661.7730796995. The cubic root of 245291136 is about 625.9802312178.

The spelling of 245291136 in words is "two hundred forty-five million, two hundred ninety-one thousand, one hundred thirty-six".