245043545 has 4 divisors (see below), whose sum is σ = 294052260. Its totient is φ = 196034832.

The previous prime is 245043529. The next prime is 245043569. The reversal of 245043545 is 545340542.

245043545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52722121 + 192321424 = 7261^2 + 13868^2 .

It is a cyclic number.

It is not a de Polignac number, because 245043545 - 2⁴ = 245043529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24504350 + ... + 24504359.

It is an arithmetic number, because the mean of its divisors is an integer number (73513065).

Almost surely, 2^245043545 is an apocalyptic number.

It is an amenable number.

245043545 is a deficient number, since it is larger than the sum of its proper divisors (49008715).

245043545 is an equidigital number, since it uses as much as digits as its factorization.

245043545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49008714.

The product of its (nonzero) digits is 48000, while the sum is 32.

The square root of 245043545 is about 15653.8667746982. The cubic root of 245043545 is about 625.7695438281.

The spelling of 245043545 in words is "two hundred forty-five million, forty-three thousand, five hundred forty-five".