245343031 has 4 divisors (see below), whose sum is σ = 259774992. Its totient is φ = 230911072.

The previous prime is 245343019. The next prime is 245343053. The reversal of 245343031 is 130343542.

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

It is a cyclic number.

It is not a de Polignac number, because 245343031 - 2⁹ = 245342519 is a prime.

It is a super-2 number, since 2×245343031² = 120386405720533922, 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 = 245342987 and 245343005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245343011) 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, 7215955 + ... + 7215988.

It is an arithmetic number, because the mean of its divisors is an integer number (64943748).

Almost surely, 2^245343031 is an apocalyptic number.

245343031 is a deficient number, since it is larger than the sum of its proper divisors (14431961).

245343031 is a wasteful number, since it uses less digits than its factorization.

245343031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14431960.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 245343031 is about 15663.4297329799. The cubic root of 245343031 is about 626.0243732578.

Adding to 245343031 its reverse (130343542), we get a palindrome (375686573).

The spelling of 245343031 in words is "two hundred forty-five million, three hundred forty-three thousand, thirty-one".