245740155243 has 32 divisors (see below), whose sum is σ = 372364473600. Its totient is φ = 142838131200.

The previous prime is 245740155173. The next prime is 245740155293. The reversal of 245740155243 is 342551047542.

It is a happy number.

245740155243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245740155243 - 2¹⁴ = 245740138859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245740155195 and 245740155204.

It is not an unprimeable number, because it can be changed into a prime (245740155293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1459378 + ... + 1619031.

It is an arithmetic number, because the mean of its divisors is an integer number (11636389800).

Almost surely, 2^245740155243 is an apocalyptic number.

245740155243 is a deficient number, since it is larger than the sum of its proper divisors (126624318357).

245740155243 is a wasteful number, since it uses less digits than its factorization.

245740155243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078523.

The product of its (nonzero) digits is 672000, while the sum is 42.

The spelling of 245740155243 in words is "two hundred forty-five billion, seven hundred forty million, one hundred fifty-five thousand, two hundred forty-three".