245101540 has 24 divisors (see below), whose sum is σ = 520023672. Its totient is φ = 97029120.

The previous prime is 245101537. The next prime is 245101541. The reversal of 245101540 is 45101542.

245101540 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 53824 + 245047716 = 232^2 + 15654^2 .

245101540 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (245101541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61231 + ... + 65110.

It is an arithmetic number, because the mean of its divisors is an integer number (21667653).

Almost surely, 2^245101540 is an apocalyptic number.

245101540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245101540 is an abundant number, since it is smaller than the sum of its proper divisors (274922132).

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

245101540 is a wasteful number, since it uses less digits than its factorization.

245101540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126447 (or 126445 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 245101540 is about 15655.7190828144. The cubic root of 245101540 is about 625.8189073566.

The spelling of 245101540 in words is "two hundred forty-five million, one hundred one thousand, five hundred forty".