245231031 has 8 divisors (see below), whose sum is σ = 329549824. Its totient is φ = 162199800.

The previous prime is 245231009. The next prime is 245231033. The reversal of 245231031 is 130132542.

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

It is not a de Polignac number, because 245231031 - 2⁷ = 245230903 is a prime.

It is a super-2 number, since 2×245231031² = 120276517130645922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245230989 and 245231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245231033) 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, 321445 + ... + 322206.

It is an arithmetic number, because the mean of its divisors is an integer number (41193728).

Almost surely, 2^245231031 is an apocalyptic number.

245231031 is a deficient number, since it is larger than the sum of its proper divisors (84318793).

245231031 is a wasteful number, since it uses less digits than its factorization.

245231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643781.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 245231031 is about 15659.8541180945. The cubic root of 245231031 is about 625.9290979455.

Adding to 245231031 its reverse (130132542), we get a palindrome (375363573).

The spelling of 245231031 in words is "two hundred forty-five million, two hundred thirty-one thousand, thirty-one".