245447172103 has 16 divisors (see below), whose sum is σ = 289597665280. Its totient is φ = 203570107200.

The previous prime is 245447172101. The next prime is 245447172109. The reversal of 245447172103 is 301271744542.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 245447172103 - 2¹ = 245447172101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245447172101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1685398 + ... + 1825228.

It is an arithmetic number, because the mean of its divisors is an integer number (18099854080).

Almost surely, 2^245447172103 is an apocalyptic number.

245447172103 is a deficient number, since it is larger than the sum of its proper divisors (44150493177).

245447172103 is a wasteful number, since it uses less digits than its factorization.

245447172103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147958.

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 245447172103 in words is "two hundred forty-five billion, four hundred forty-seven million, one hundred seventy-two thousand, one hundred three".