245660155 has 8 divisors (see below), whose sum is σ = 317468592. Its totient is φ = 181410528.

The previous prime is 245660153. The next prime is 245660159. The reversal of 245660155 is 551066542.

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

It is not a de Polignac number, because 245660155 - 2¹ = 245660153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245660155.

It is not an unprimeable number, because it can be changed into a prime (245660153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1889629 + ... + 1889758.

It is an arithmetic number, because the mean of its divisors is an integer number (39683574).

Almost surely, 2^245660155 is an apocalyptic number.

245660155 is a deficient number, since it is larger than the sum of its proper divisors (71808437).

245660155 is a wasteful number, since it uses less digits than its factorization.

245660155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3779405.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 245660155 is about 15673.5495341674. The cubic root of 245660155 is about 626.2939847168.

The spelling of 245660155 in words is "two hundred forty-five million, six hundred sixty thousand, one hundred fifty-five".