245191154213 has 2 divisors, whose sum is σ = 245191154214. Its totient is φ = 245191154212.

The previous prime is 245191154183. The next prime is 245191154227. The reversal of 245191154213 is 312451191542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228056867809 + 17134286404 = 477553^2 + 130898^2 .

It is a cyclic number.

It is not a de Polignac number, because 245191154213 - 2²⁰ = 245190105637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245191154293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122595577106 + 122595577107.

It is an arithmetic number, because the mean of its divisors is an integer number (122595577107).

Almost surely, 2^245191154213 is an apocalyptic number.

It is an amenable number.

245191154213 is a deficient number, since it is larger than the sum of its proper divisors (1).

245191154213 is an equidigital number, since it uses as much as digits as its factorization.

245191154213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 38.

The spelling of 245191154213 in words is "two hundred forty-five billion, one hundred ninety-one million, one hundred fifty-four thousand, two hundred thirteen".