245140131 has 4 divisors (see below), whose sum is σ = 326853512. Its totient is φ = 163426752.

The previous prime is 245140127. The next prime is 245140163. The reversal of 245140131 is 131041542.

245140131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 245140131 - 2² = 245140127 is a prime.

It is a super-2 number, since 2×245140131² = 120187367653394322, 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 = 245140098 and 245140107.

It is not an unprimeable number, because it can be changed into a prime (245140031) 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, 40856686 + ... + 40856691.

It is an arithmetic number, because the mean of its divisors is an integer number (81713378).

Almost surely, 2^245140131 is an apocalyptic number.

245140131 is a deficient number, since it is larger than the sum of its proper divisors (81713381).

245140131 is an equidigital number, since it uses as much as digits as its factorization.

245140131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81713380.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 245140131 is about 15656.9515232053. The cubic root of 245140131 is about 625.8517504931.

Adding to 245140131 its reverse (131041542), we get a palindrome (376181673).

The spelling of 245140131 in words is "two hundred forty-five million, one hundred forty thousand, one hundred thirty-one".