245313131 has 8 divisors (see below), whose sum is σ = 280648704. Its totient is φ = 210050280.

The previous prime is 245313121. The next prime is 245313149. The reversal of 245313131 is 131313542.

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 245313131 - 2¹⁰ = 245312107 is a prime.

It is a super-2 number, since 2×245313131² = 120357064482046322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245313097 and 245313106.

It is not an unprimeable number, because it can be changed into a prime (245313121) 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, 10745 + ... + 24618.

It is an arithmetic number, because the mean of its divisors is an integer number (35081088).

Almost surely, 2^245313131 is an apocalyptic number.

245313131 is a deficient number, since it is larger than the sum of its proper divisors (35335573).

245313131 is an equidigital number, since it uses as much as digits as its factorization.

245313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36361.

The product of its digits is 1080, while the sum is 23.

The square root of 245313131 is about 15662.4752513771. The cubic root of 245313131 is about 625.9989409897.

Adding to 245313131 its reverse (131313542), we get a palindrome (376626673).

The spelling of 245313131 in words is "two hundred forty-five million, three hundred thirteen thousand, one hundred thirty-one".