245155101 has 4 divisors (see below), whose sum is σ = 326873472. Its totient is φ = 163436732.

The previous prime is 245155093. The next prime is 245155111. The reversal of 245155101 is 101551542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245155101 - 2³ = 245155093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245155111) 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, 40859181 + ... + 40859186.

It is an arithmetic number, because the mean of its divisors is an integer number (81718368).

Almost surely, 2^245155101 is an apocalyptic number.

It is an amenable number.

245155101 is a deficient number, since it is larger than the sum of its proper divisors (81718371).

245155101 is an equidigital number, since it uses as much as digits as its factorization.

245155101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81718370.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 245155101 is about 15657.4295783184. The cubic root of 245155101 is about 625.8644898869.

The spelling of 245155101 in words is "two hundred forty-five million, one hundred fifty-five thousand, one hundred one".