254131525245243 has 4 divisors (see below), whose sum is σ = 338842033660328. Its totient is φ = 169421016830160.

The previous prime is 254131525245229. The next prime is 254131525245277. The reversal of 254131525245243 is 342542525131452.

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

It is a de Polignac number, because none of the positive numbers 2^k-254131525245243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254131525245192 and 254131525245201.

It is not an unprimeable number, because it can be changed into a prime (254131525249243) 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, 42355254207538 + ... + 42355254207543.

It is an arithmetic number, because the mean of its divisors is an integer number (84710508415082).

Almost surely, 2^{254131525245243} is an apocalyptic number.

254131525245243 is a deficient number, since it is larger than the sum of its proper divisors (84710508415085).

254131525245243 is an equidigital number, since it uses as much as digits as its factorization.

254131525245243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84710508415084.

The product of its digits is 5760000, while the sum is 48.

The spelling of 254131525245243 in words is "two hundred fifty-four trillion, one hundred thirty-one billion, five hundred twenty-five million, two hundred forty-five thousand, two hundred forty-three".