245323137 has 8 divisors (see below), whose sum is σ = 328502304. Its totient is φ = 162846368.

The previous prime is 245323123. The next prime is 245323153. The reversal of 245323137 is 731323542.

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

It is a cyclic number.

It is not a de Polignac number, because 245323137 - 2⁸ = 245322881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245323157) 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, 174783 + ... + 176180.

It is an arithmetic number, because the mean of its divisors is an integer number (41062788).

Almost surely, 2^245323137 is an apocalyptic number.

It is an amenable number.

245323137 is a deficient number, since it is larger than the sum of its proper divisors (83179167).

245323137 is a wasteful number, since it uses less digits than its factorization.

245323137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351199.

The product of its digits is 15120, while the sum is 30.

The square root of 245323137 is about 15662.7946740037. The cubic root of 245323137 is about 626.0074520985.

Adding to 245323137 its reverse (731323542), we get a palindrome (976646679).

The spelling of 245323137 in words is "two hundred forty-five million, three hundred twenty-three thousand, one hundred thirty-seven".