245123031345 has 8 divisors (see below), whose sum is σ = 392196850176. Its totient is φ = 130732283376.

The previous prime is 245123031319. The next prime is 245123031379. The reversal of 245123031345 is 543130321542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245123031345 - 2²¹ = 245120934193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8170767697 + ... + 8170767726.

It is an arithmetic number, because the mean of its divisors is an integer number (49024606272).

Almost surely, 2^245123031345 is an apocalyptic number.

It is an amenable number.

245123031345 is a deficient number, since it is larger than the sum of its proper divisors (147073818831).

245123031345 is a wasteful number, since it uses less digits than its factorization.

245123031345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16341535431.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 245123031345 its reverse (543130321542), we get a palindrome (788253352887).

The spelling of 245123031345 in words is "two hundred forty-five billion, one hundred twenty-three million, thirty-one thousand, three hundred forty-five".