245040304153523 has 4 divisors (see below), whose sum is σ = 245046923502360. Its totient is φ = 245033684804688.

The previous prime is 245040304153487. The next prime is 245040304153571. The reversal of 245040304153523 is 325351403040542.

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

It is a cyclic number.

It is not a de Polignac number, because 245040304153523 - 2²⁴ = 245040287376307 is a prime.

It is a super-2 number, since 2×245040304153523² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245040304153573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3309618890 + ... + 3309692927.

It is an arithmetic number, because the mean of its divisors is an integer number (61261730875590).

Almost surely, 2^{245040304153523} is an apocalyptic number.

245040304153523 is a deficient number, since it is larger than the sum of its proper divisors (6619348837).

245040304153523 is an equidigital number, since it uses as much as digits as its factorization.

245040304153523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6619348836.

The product of its (nonzero) digits is 864000, while the sum is 41.

The spelling of 245040304153523 in words is "two hundred forty-five trillion, forty billion, three hundred four million, one hundred fifty-three thousand, five hundred twenty-three".