245225157 has 4 divisors (see below), whose sum is σ = 326966880. Its totient is φ = 163483436.

The previous prime is 245225147. The next prime is 245225203. The reversal of 245225157 is 751522542.

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 245225157 - 2⁸ = 245224901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245225107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40870857 + ... + 40870862.

It is an arithmetic number, because the mean of its divisors is an integer number (81741720).

Almost surely, 2^245225157 is an apocalyptic number.

It is an amenable number.

245225157 is a deficient number, since it is larger than the sum of its proper divisors (81741723).

245225157 is an equidigital number, since it uses as much as digits as its factorization.

245225157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81741722.

The product of its digits is 28000, while the sum is 33.

The square root of 245225157 is about 15659.6665673315. Note that the first 3 decimals coincide. The cubic root of 245225157 is about 625.9241002951.

Adding to 245225157 its reverse (751522542), we get a palindrome (996747699).

The spelling of 245225157 in words is "two hundred forty-five million, two hundred twenty-five thousand, one hundred fifty-seven".