245155673 has 12 divisors (see below), whose sum is σ = 292890852. Its totient is φ = 204452640.

The previous prime is 245155667. The next prime is 245155697. The reversal of 245155673 is 376551542.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 215267584 + 29888089 = 14672^2 + 5467^2 .

It is not a de Polignac number, because 245155673 - 2¹⁰ = 245154649 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245155663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65798 + ... + 69423.

It is an arithmetic number, because the mean of its divisors is an integer number (24407571).

Almost surely, 2^245155673 is an apocalyptic number.

It is an amenable number.

245155673 is a deficient number, since it is larger than the sum of its proper divisors (47735179).

245155673 is a wasteful number, since it uses less digits than its factorization.

245155673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135272 (or 135265 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 245155673 is about 15657.4478443966. The cubic root of 245155673 is about 625.8649766457.

The spelling of 245155673 in words is "two hundred forty-five million, one hundred fifty-five thousand, six hundred seventy-three".