245546743133 has 2 divisors, whose sum is σ = 245546743134. Its totient is φ = 245546743132.

The previous prime is 245546743129. The next prime is 245546743147. The reversal of 245546743133 is 331347645542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127115780089 + 118430963044 = 356533^2 + 344138^2 .

It is a cyclic number.

It is not a de Polignac number, because 245546743133 - 2² = 245546743129 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245546743733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122773371566 + 122773371567.

It is an arithmetic number, because the mean of its divisors is an integer number (122773371567).

Almost surely, 2^245546743133 is an apocalyptic number.

It is an amenable number.

245546743133 is a deficient number, since it is larger than the sum of its proper divisors (1).

245546743133 is an equidigital number, since it uses as much as digits as its factorization.

245546743133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 47.

The spelling of 245546743133 in words is "two hundred forty-five billion, five hundred forty-six million, seven hundred forty-three thousand, one hundred thirty-three".