245631097 has 8 divisors (see below), whose sum is σ = 250801920. Its totient is φ = 240480240.

The previous prime is 245631083. The next prime is 245631137. The reversal of 245631097 is 790136542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245631097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245631077) 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, 21304 + ... + 30742.

It is an arithmetic number, because the mean of its divisors is an integer number (31350240).

Almost surely, 2^245631097 is an apocalyptic number.

It is an amenable number.

245631097 is a deficient number, since it is larger than the sum of its proper divisors (5170823).

245631097 is an equidigital number, since it uses as much as digits as its factorization.

245631097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9983.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 245631097 is about 15672.6225310252. The cubic root of 245631097 is about 626.2692899399.

Subtracting 245631097 from its reverse (790136542), we obtain a palindrome (544505445).

The spelling of 245631097 in words is "two hundred forty-five million, six hundred thirty-one thousand, ninety-seven".