245124157 has 4 divisors (see below), whose sum is σ = 245159676. Its totient is φ = 245088640.

The previous prime is 245124151. The next prime is 245124167. The reversal of 245124157 is 751421542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93489561 + 151634596 = 9669^2 + 12314^2 .

It is a cyclic number.

It is not a de Polignac number, because 245124157 - 2⁷ = 245124029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245124151) 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, 3694 + ... + 22447.

It is an arithmetic number, because the mean of its divisors is an integer number (61289919).

Almost surely, 2^245124157 is an apocalyptic number.

It is an amenable number.

245124157 is a deficient number, since it is larger than the sum of its proper divisors (35519).

245124157 is an equidigital number, since it uses as much as digits as its factorization.

245124157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35518.

The product of its digits is 11200, while the sum is 31.

The square root of 245124157 is about 15656.4413900477. The cubic root of 245124157 is about 625.8381561284.

Adding to 245124157 its reverse (751421542), we get a palindrome (996545699).

The spelling of 245124157 in words is "two hundred forty-five million, one hundred twenty-four thousand, one hundred fifty-seven".