245531141 has 4 divisors (see below), whose sum is σ = 256206432. Its totient is φ = 234855852.

The previous prime is 245531137. The next prime is 245531159. The reversal of 245531141 is 141135542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 141135542 = 2 ⋅70567771.

It is not a de Polignac number, because 245531141 - 2² = 245531137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245531141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245531171) 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, 5337611 + ... + 5337656.

It is an arithmetic number, because the mean of its divisors is an integer number (64051608).

Almost surely, 2^245531141 is an apocalyptic number.

It is an amenable number.

245531141 is a deficient number, since it is larger than the sum of its proper divisors (10675291).

245531141 is a wasteful number, since it uses less digits than its factorization.

245531141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10675290.

The product of its digits is 2400, while the sum is 26.

The square root of 245531141 is about 15669.4333337233. The cubic root of 245531141 is about 626.1843280232.

Adding to 245531141 its reverse (141135542), we get a palindrome (386666683).

The spelling of 245531141 in words is "two hundred forty-five million, five hundred thirty-one thousand, one hundred forty-one".